{ "title": "A year within reach", "date": "2026-10-02", "period": "1991–2020", "center": { "name": "El Segundo civic center (chosen reference)", "lat": 33.9192, "lon": -118.4165 }, "radiusMiles": 25, "method": "25 statute miles = 40.2336 km, great-circle (haversine), Earth radius 6,371.0088 km. The on-screen local equirectangular projection uses the center latitude; the boundary is sampled geodesically. Neighborhood shapes and coastline are schematic editorial illustrations, not GIS boundaries or measured weather interpolation.", "seasons": [ { "id": "winter", "name": "Winter", "months": "DEC — FEB", "color": "#749cad", "guide": "DRIFT", "title": "Make room for rain.", "summary": "Most rainfall arrives in the cool half of the year. Plan an outdoor window, a dry return and an indoor alternative. A wet year and a dry year can have very different rhythms.", "outdoor": "Choose a dry daylight interval and paved routes after rain; check closures, surf and NWS warnings before leaving.", "comfort": "Keep a removable layer near the door. Cool evenings can matter even when the afternoon feels mild.", "home": "Repair drafts and leaks; ventilate briefly when outdoor air is clean and conditions allow. Keep runoff paths clear.", "water": "Pause irrigation after meaningful rain according to your site and local rules; dry winters still require care.", "objects": [ "shell", "glow", "pip" ] }, { "id": "spring", "name": "Spring", "months": "MAR — MAY", "color": "#97b3a3", "guide": "MIST", "title": "Follow the light, keep a layer.", "summary": "Rain tapers while the marine layer becomes a familiar coastal visitor. Overcast does not promise cool conditions everywhere: a few miles inland or an exposed slope can tell another story.", "outdoor": "Try a late-morning coastal outing if low cloud persists; choose shade when inland sun arrives. Check the actual cloud and wind first.", "comfort": "Pack one light layer instead of betting on the first look outside. Wind and exposure change comfort.", "home": "Use a simple indoor/outdoor temperature check before opening windows. Air quality and noise also count.", "water": "Review soil moisture and plant needs before adding summer irrigation; use mulch and repair drips.", "objects": [ "pane", "turn", "pip" ] }, { "id": "summer", "name": "Summer", "months": "JUN — AUG", "color": "#ecc17b", "guide": "SOL", "title": "Bring shade into the plan.", "summary": "Rain is normally scarce; inland afternoons are warmer than the immediate coast. Morning low cloud may offer a gentler start, but coastal cooling can fail during heat events.", "outdoor": "Favor earlier or later outdoor time, shade and access to water; check heat alerts. Comfort is individual and cloud cover is variable.", "comfort": "Shade sun-facing windows before heat accumulates. A timer can remind you to stop and recheck conditions.", "home": "Ventilate only when outside is cooler and air is clean; during smoke use official AirNow guidance. A window cue is not an air-quality sensor.", "water": "Use local watering rules, efficient irrigation and drought-tolerant planting. The normal dry season is not a drought declaration.", "objects": [ "brim", "pane", "turn" ] }, { "id": "fall", "name": "Autumn", "months": "SEP — NOV", "color": "#cc8767", "guide": "EMBER", "title": "Expect the season to turn twice.", "summary": "Early autumn can remain hot. Offshore Santa Ana episodes can bring warm, dry, gusty air; later autumn begins the transition toward rain. Smoke can occur in any season.", "outdoor": "Check heat, fire-weather, wind and smoke notices before an exposed walk. Swap the plan for a sheltered indoor activity when conditions worsen.", "comfort": "Keep shade gear ready in September, then restore the rain kit as winter approaches. Calendar dates do not define the weather.", "home": "Keep a clean-air room plan and check filters. Shut windows during smoke; follow AirNow and local official instructions.", "water": "Inspect gutters and runoff before the first storm; keep water conservation habits through warm spells.", "objects": [ "pane", "shell", "glow" ] } ], "zones": [ { "id": "coast", "name": "Ocean edge", "places": "El Segundo · Manhattan Beach · Santa Monica", "lat": 33.9416, "lon": -118.4085, "color": "#88b4b6", "pattern": "Cooler typical summer afternoons, onshore breeze, low cloud and salt exposure. Marine influence varies by day and distance from the water.", "evidence": "LAX is the main numeric coastal anchor here. Beaches, street canyons and bluffs are not measured by the airport thermometer.", "objects": [ "pane", "shell", "brim" ], "advice": { "outdoor": "Start with a layered coastal walk; use wind, cloud and current heat conditions to choose the hour.", "comfort": "Carry a light layer for breeze and shade for any sunny interval.", "home": "A clean, cooler sea breeze can help; a closed window is often better when smoke, traffic air or noise is present.", "water": "Salt and wind affect planting and gear. Rinse and repair objects; irrigate for soil need, not the map color." } }, { "id": "basin", "name": "Inland basin", "places": "Culver City · central LA · downtown", "lat": 34.04, "lon": -118.29, "color": "#ddb079", "pattern": "Less direct ocean cooling and more warm surfaces. Inland afternoon heat often rises faster than at the beach; tree cover and buildings vary block by block.", "evidence": "Downtown's NOAA composite series provides a contrast, not a neighborhood temperature surface. Station location has changed.", "objects": [ "brim", "turn", "pane" ], "advice": { "outdoor": "Choose shade and an earlier or later outing; check heat advisories even if the coastal forecast looks mild.", "comfort": "Sun exposure, pavement and humidity matter beyond air temperature. Put shade and a refill stop in the route.", "home": "Shade first; compare indoor/outdoor temperatures before ventilating. Keep an indoor alternative for heat and smoke.", "water": "Use mulch, fix leaks and follow local rules. Hot pavement is not proof that a plant needs water." } }, { "id": "south", "name": "South Bay & port plain", "places": "Torrance · Carson · Long Beach airport", "lat": 33.84, "lon": -118.25, "color": "#b6bb95", "pattern": "A transition from coastal breeze to warmer inland airport and industrial plain settings. Terrain and distance from the water alter afternoon wind.", "evidence": "Long Beach airport supplies a southern/inland reference. It does not characterize every coastal block or port exposure.", "objects": [ "brim", "pane", "shell" ], "advice": { "outdoor": "Check the local wind and heat, then choose shade; airport normals do not set waterfront comfort.", "comfort": "A simple shaded rest and refill plan is useful before a long outing.", "home": "Check air quality near your actual location; this atlas does not map pollution or emissions.", "water": "Keep a rain-ready kit and efficient irrigation plan for the long dry season." } }, { "id": "hills", "name": "Hills & exposed slopes", "places": "Palos Verdes · Santa Monica foothills (inside circle)", "lat": 33.79, "lon": -118.38, "color": "#8d9c76", "pattern": "Elevation, slope, aspect and exposure add contrast. Some slopes may sit above a shallow marine layer; wind and fire weather can matter more than the seasonal mean.", "evidence": "No dedicated hill normal is used in this edition. This is a qualitative terrain class; no lapse-rate correction or precise contour is claimed.", "objects": [ "brim", "shell", "pip" ], "advice": { "outdoor": "Check trail closures and wind. Choose a shaded route with an easy return; avoid treating a hill as automatic heat relief.", "comfort": "Bring a layer for exposure and shade for sun. Coastal low cloud can lie below an exposed hillside.", "home": "Terrain can amplify wind. Use current local alerts, not this map, for operational decisions.", "water": "Slope and runoff matter. Inspect drainage before rain and follow local drought and fire guidance." } }, { "id": "north", "name": "Northern inland edge", "places": "Burbank airport · southern valley edge", "lat": 34.2, "lon": -118.358, "color": "#d99772", "pattern": "Within the circle's northern reach, summer afternoons are typically warmer and winter nights cooler than at LAX. Valley topography can shelter or channel wind.", "evidence": "Burbank airport is one measured anchor near the radius edge; nearby mountain sectors remain poorly represented.", "objects": [ "brim", "pane", "turn" ], "advice": { "outdoor": "Treat heat planning as a first step: shade, a shorter route and current alerts.", "comfort": "A larger day-to-night swing can make a layer useful after an early or late outing.", "home": "Consider cooler-night ventilation only with clean outdoor air and a safe window setup.", "water": "Conserve through the dry season; prepare for episodic rain rather than expecting evenly spread rainfall." } } ], "sources": [ { "id": "normal-method", "title": "NOAA U.S. Climate Normals / periods, quality and comparison method", "url": "https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals", "use": "Defines station normals, available-year flags and consistent-version comparison cautions. Four raw monthly station CSVs are linked above and downloadable below." }, { "id": "station-history", "title": "NWS Downtown Los Angeles observing-site move notice", "url": "https://www.weather.gov/media/notification/pdf_2023_24/scn24-47_downtown_los_angeles_observing_site_move.pdf", "use": "Series began July 1877; Civic Center 1964–1999, USC since 1999, relocation in May 2024. Moves limit direct site comparisons." }, { "id": "homr", "title": "NOAA Historical Observing Metadata Repository", "url": "https://www.ncei.noaa.gov/access/homr/", "use": "Station coordinates, elevations and histories. The historical USC anchor differs from coordinates retained in the monthly normals CSV." }, { "id": "ghcnd", "title": "NOAA GHCN-Daily station data and quality flags", "url": "https://www.ncei.noaa.gov/pub/data/ghcn/daily/readme.txt", "use": "Daily records were aggregated for complete calendar years 1991–2025 at LAX and Downtown. Nonmissing values with blank quality flag only; trace measured rain retained as zero. Daily file links are included in downloads." }, { "id": "marine", "title": "NOAA JetStream: Marine Layer", "url": "https://www.noaa.gov/jetstream/ocean/marine-layer", "use": "Explains inversion, variable depth, terrain reach and May Gray / June Gloom. Does not establish cloud hours on any atlas parcel." }, { "id": "regional", "title": "NWS Los Angeles: Weather of Southern California, WR-261 (2000)", "url": "https://www.weather.gov/media/wrh/online_publications/TMs/TM-261.pdf", "use": "Historic regional interpretation: station-location map, August 1999 inversion and wind maps. Historic statistics and service guidance are not used as current warnings." }, { "id": "wind", "title": "NWS Mountain and Valley Winds", "url": "https://www.weather.gov/safety/wind-mountain-valley", "use": "Santa Ana mechanism and September–May occurrence context. Offshore-wind checks apply beyond autumn." }, { "id": "climate", "title": "NOAA California State Climate Summary 2022", "url": "https://statesummaries.ncics.org/chapter/ca/", "use": "Observations through 2020 show nearly 3°F statewide warming since the early twentieth century and major rainfall variability. State trend context and future emissions scenarios are separate from local station evidence." }, { "id": "maps", "title": "NOAA/WPC Daily Weather Map archive", "url": "https://www.wpc.ncep.noaa.gov/dwm/dwm.shtml", "use": "Dated synoptic charts and historical 1871–2002 scans; these are weather snapshots, not porch-scale climatology." }, { "id": "topo", "title": "USGS Historical Topographic Maps", "url": "https://www.usgs.gov/programs/national-geospatial-program/historical-topographic-maps-preserving-past", "use": "Preserves printed map editions from 1884–2006. Contours explain landscape; elevation lines are not measured weather boundaries." }, { "id": "prism", "title": "PRISM 1991–2020 normals", "url": "https://prism.oregonstate.edu/normals/", "use": "800 m and 4 km modeled climate grids. Linked as a future quantitative mapping option; no PRISM raster was processed for this edition." }, { "id": "prism-method", "title": "PRISM mapping methods", "url": "https://prism.oregonstate.edu/methods/", "use": "Models consider terrain, station information and coastal influence; modeled cell values still need uncertainty and validation." }, { "id": "heat", "title": "NWS During a Heat Wave", "url": "https://www.weather.gov/safety/heat-during", "use": "Basis for cooler activity periods, shade breaks and an indoor cooling alternative. Seasonal mean is not a heat-alert threshold." }, { "id": "smoke", "title": "EPA Wildfires and Indoor Air Quality", "url": "https://www.epa.gov/emergencies-iaq/wildfires-and-indoor-air-quality-iaq", "use": "Explains smoke entering homes and the limits of ventilation. Use current AirNow and official guidance." }, { "id": "clean-room", "title": "EPA Create a Clean Room", "url": "https://www.epa.gov/emergencies-iaq/create-clean-room-protect-indoor-air-quality-during-wildfire", "use": "Source for clean-air room planning, commercial filtration and cooling tradeoffs. No library object is an air cleaner." }, { "id": "drought", "title": "NOAA NIDIS California drought information", "url": "https://www.drought.gov/states/california", "use": "Dated drought context and different water-system impacts. A normal dry season is not a drought declaration." }, { "id": "flood", "title": "NWS Flood Safety", "url": "https://www.weather.gov/safety/flood-turn-around-dont-drown", "use": "Current storm guidance overrides seasonal route ideas. The atlas does not estimate route passability." }, { "id": "nouns", "title": "Nouns visual culture", "url": "https://nouns.wtf/", "use": "Inspiration for original square-glasses illustrations. No Nouns token assets or code imported. Independent art; no official Nouns affiliation." } ], "stations": [ { "id": "USW00023174", "short": "LAX", "name": "LAX · coast", "lat": 33.9381, "lon": -118.3889, "elevation": 29.6, "distanceMiles": 2.05, "high": [ 66.3, 65.6, 66.1, 68.1, 69.5, 72, 75.1, 76.7, 76.5, 74.4, 70.9, 66.1 ], "low": [ 49.4, 50.1, 52.2, 54.2, 57.6, 60.9, 64, 64.8, 63.7, 59.8, 53.7, 49.1 ], "rain": [ 2.86, 2.99, 1.73, 0.6, 0.28, 0.08, 0.04, 0, 0.11, 0.49, 0.82, 2.23 ], "quality": "NOAA variable-specific flags: High (TMAX): S, 26–27 available years; Low (TMIN): S, 27–29 available years; Mean (TAVG): S, 26–27 available years; Rain: S, 30–30 years. S = Standard; R = Representative. Missing months may be estimated.", "history": "Airport metadata reaches 1930; supplied daily elements begin August 1944. Airport exposure is a coastal reference, not a beach or home measurement.", "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00023174.csv", "color": "#356c83" }, { "id": "USW00093134", "short": "Downtown", "name": "Downtown / USC · historical series", "lat": 34.0236, "lon": -118.2911, "elevation": 54.6, "distanceMiles": 10.18, "high": [ 68, 68, 69.9, 72.4, 73.7, 77.2, 82, 84, 83, 78.6, 72.9, 67.4 ], "low": [ 48.9, 50, 52.4, 54.8, 58.1, 61.4, 64.7, 65.4, 64.2, 59.9, 53.1, 48.2 ], "rain": [ 3.29, 3.64, 2.23, 0.69, 0.32, 0.09, 0.02, 0, 0.13, 0.58, 0.78, 2.48 ], "quality": "NOAA variable-specific flags: High (TMAX): S, 26–28 available years; Low (TMIN): S, 25–27 available years; Mean (TAVG): R/S, 25–27 available years; Rain: S, 30–30 years. S = Standard; R = Representative. Missing months may be estimated.", "history": "Downtown climate series began in 1877. Civic Center observations moved to USC in 1999 and to FHMC in 2024. Normal is a composite historical series.", "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00093134.csv", "color": "#cf6b47" }, { "id": "USW00023152", "short": "Burbank", "name": "Burbank airport · inland valley", "lat": 34.2006, "lon": -118.3575, "elevation": 225.9, "distanceMiles": 19.73, "high": [ 67, 66.8, 69.5, 72.7, 75.5, 80.3, 86.7, 88.9, 86.6, 79.4, 72.5, 66.1 ], "low": [ 45.3, 46.4, 49, 51.9, 56.6, 59.9, 64.5, 64.9, 62.9, 57.5, 49, 44.2 ], "rain": [ 2.97, 3.95, 2.43, 0.74, 0.29, 0.09, 0.01, 0.01, 0.11, 0.6, 0.69, 2.02 ], "quality": "NOAA variable-specific flags: High (TMAX): R, 20–21 available years; Low (TMIN): R, 18–20 available years; Mean (TAVG): R, 18–20 available years; Rain: R, 20–23 years. S = Standard; R = Representative. Missing months may be estimated.", "history": "Airport history metadata reaches 1931; supplied GHCNd daily elements begin in May 1998. NOAA temperature normal is Representative, with estimated missing months.", "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00023152.csv", "color": "#72547b" }, { "id": "USW00023129", "short": "Long Beach", "name": "Long Beach airport · coastal plain", "lat": 33.8117, "lon": -118.1464, "elevation": 9.4, "distanceMiles": 17.18, "high": [ 67.4, 66.8, 68.6, 71.4, 73.1, 76.1, 81.4, 83.2, 82.4, 77.7, 72.5, 66.7 ], "low": [ 46.9, 48.4, 51.2, 53.9, 57.9, 61.3, 64.9, 65.5, 63.9, 59.1, 51.6, 46.6 ], "rain": [ 2.89, 3.02, 1.65, 0.56, 0.26, 0.07, 0.05, 0.01, 0.08, 0.53, 0.75, 2.15 ], "quality": "NOAA variable-specific flags: High (TMAX): S, 24–26 available years; Low (TMIN): R, 22–23 available years; Mean (TAVG): R, 22–23 available years; Rain: S, 29–30 years. S = Standard; R = Representative. Missing months may be estimated.", "history": "Airport metadata reaches 1930; supplied daily elements begin January 1949. Coastal-plain airport is inland from the waterfront.", "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00023129.csv", "color": "#7a915e" } ], "historical": [ { "kind": "OBSERVATIONS", "period": "1991–2025", "title": "The wet years and the dry ones", "text": "Complete GHCNd calendar-year rain sums at LAX include about 27.1 inches in 1998, 3.6 in 2013 and 25.4 in 2023. Those are specific observed years, not future odds. Compare the full 35-year record below.", "source": "NOAA LAX daily archive", "url": "https://www.ncei.noaa.gov/pub/data/ghcn/daily/all/USW00023174.dly" }, { "kind": "NORMAL", "period": "1991–2020", "title": "A long dry season", "text": "LAX’s rounded monthly normals sum to 12.23 inches annually; approximately 87% is in November–March. Downtown’s sum is 14.25 inches. Year-to-year totals and timing vary substantially.", "source": "NOAA LAX monthly normal", "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00023174.csv" }, { "kind": "TREND CONTEXT", "period": "STATE / THROUGH 2020", "title": "A warmer California", "text": "NOAA’s 2022 state assessment reports nearly 3°F of statewide warming since the early twentieth century. It reports large precipitation variability. This is regional context; we have not estimated an El Segundo warming rate.", "source": "NOAA state assessment", "url": "https://statesummaries.ncics.org/chapter/ca/" }, { "kind": "SCENARIO", "period": "FUTURE / CONDITIONAL", "title": "Keep the plan adaptable", "text": "The same assessment’s future warming and drought discussion depends on emissions pathways and model assumptions. This atlas uses that as a reason to keep shade, water and indoor alternatives in the plan; no future local values are forecast here.", "source": "NOAA scenario context", "url": "https://statesummaries.ncics.org/chapter/ca/" } ], "mapping": [ { "title": "A weather day, plotted", "text": "Beginning in 1871, daily weather maps assembled station readings into a wider pattern: pressure, rain and temperature. They help place an unusual day in context. A 2000 NWS regional guide plotted local reference stations and illustrated an August 1999 inversion.", "limit": "A dated synoptic map describes that observation time. It is not a neighborhood comfort map or an event-frequency estimate.", "source": "NOAA/WPC archive", "url": "https://www.wpc.ncep.noaa.gov/dwm/dwm.shtml" }, { "title": "The landscape underneath", "text": "USGS historic topographic maps (printed editions 1884–2006) supply contours, waterways and settlement. Hills, slope and ocean exposure help interpret why nearby stations differ. Compare dated editions carefully.", "limit": "Contours show elevation. Historic maps need their edition, datum and georeferencing before an overlay; we did not digitize a local historic sheet here.", "source": "USGS map collection", "url": "https://www.usgs.gov/programs/national-geospatial-program/historical-topographic-maps-preserving-past" }, { "title": "A model between stations", "text": "Modern PRISM normals estimate a climate surface using observations, elevation and other physical relationships. Its current 1991–2020 products have 800 m and 4 km grids. A seasonal suitability map then adds a clearly labeled purpose.", "limit": "No PRISM cells are shown here. Current map zones are illustrative terrain classes, not interpolated observations. A quantitative next edition requires documented processing and validation.", "source": "PRISM data and methods", "url": "https://prism.oregonstate.edu/normals/" } ], "observedCalendarYears": [ { "station": "lax", "year": 1991, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 11.05, "tmaxAcceptedDays": 365, "peakHighF": 95, "peakDate": "1991-10-10", "daysRoundedHighAtLeast90F": 3 }, { "station": "lax", "year": 1992, "periodType": "calendar year", "expectedDays": 366, "precipAcceptedDays": 366, "precipIn": 16.58, "tmaxAcceptedDays": 366, "peakHighF": 91.9, "peakDate": "1992-07-08", "daysRoundedHighAtLeast90F": 3 }, { "station": "lax", "year": 1993, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 20.67, "tmaxAcceptedDays": 365, "peakHighF": 91, "peakDate": "1993-11-02", "daysRoundedHighAtLeast90F": 2 }, { "station": "lax", "year": 1994, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 8.07, "tmaxAcceptedDays": 365, "peakHighF": 98.1, "peakDate": "1994-10-08", "daysRoundedHighAtLeast90F": 6 }, { "station": "lax", "year": 1995, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 23.29, "tmaxAcceptedDays": 365, "peakHighF": 93, "peakDate": "1995-10-02", "daysRoundedHighAtLeast90F": 3 }, { "station": "lax", "year": 1996, "periodType": "calendar year", "expectedDays": 366, "precipAcceptedDays": 366, "precipIn": 16.1, "tmaxAcceptedDays": 366, "peakHighF": 97, "peakDate": "1996-08-30", "daysRoundedHighAtLeast90F": 7 }, { "station": "lax", "year": 1997, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 12.04, "tmaxAcceptedDays": 365, "peakHighF": 97, "peakDate": "1997-10-15", "daysRoundedHighAtLeast90F": 9 }, { "station": "lax", "year": 1998, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 27.07, "tmaxAcceptedDays": 365, "peakHighF": 95, "peakDate": "1998-09-01", "daysRoundedHighAtLeast90F": 3 }, { "station": "lax", "year": 1999, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 6.92, "tmaxAcceptedDays": 365, "peakHighF": 95, "peakDate": "1999-10-20", "daysRoundedHighAtLeast90F": 4 }, { "station": "lax", "year": 2000, "periodType": "calendar year", "expectedDays": 366, "precipAcceptedDays": 366, "precipIn": 11.03, "tmaxAcceptedDays": 366, "peakHighF": 93, "peakDate": "2000-09-12", "daysRoundedHighAtLeast90F": 1 }, { "station": "lax", "year": 2001, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 17.01, "tmaxAcceptedDays": 365, "peakHighF": 84, "peakDate": "2001-02-04", "daysRoundedHighAtLeast90F": 0 }, { "station": "lax", "year": 2002, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 5.03, "tmaxAcceptedDays": 365, "peakHighF": 89.1, "peakDate": "2002-02-21", "daysRoundedHighAtLeast90F": 0 }, { "station": "lax", "year": 2003, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 9.55, "tmaxAcceptedDays": 365, "peakHighF": 91, "peakDate": "2003-01-31", "daysRoundedHighAtLeast90F": 2 }, { "station": "lax", "year": 2004, "periodType": "calendar year", "expectedDays": 366, "precipAcceptedDays": 366, "precipIn": 16.34, "tmaxAcceptedDays": 366, "peakHighF": 100.9, "peakDate": "2004-09-05", "daysRoundedHighAtLeast90F": 6 }, { "station": "lax", "year": 2005, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 18.82, "tmaxAcceptedDays": 365, "peakHighF": 96.1, "peakDate": "2005-09-29", "daysRoundedHighAtLeast90F": 5 }, { "station": "lax", "year": 2006, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 9.2, "tmaxAcceptedDays": 365, "peakHighF": 93.9, "peakDate": "2006-06-27", "daysRoundedHighAtLeast90F": 3 }, { "station": "lax", "year": 2007, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 4.9, "tmaxAcceptedDays": 364, "peakHighF": 93.9, "peakDate": "2007-10-24", "daysRoundedHighAtLeast90F": null }, { "station": "lax", "year": 2008, "periodType": "calendar year", "expectedDays": 366, "precipAcceptedDays": 366, "precipIn": 11.02, "tmaxAcceptedDays": 366, "peakHighF": 96.1, "peakDate": "2008-04-13", "daysRoundedHighAtLeast90F": 11 }, { "station": "lax", "year": 2009, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 7.47, "tmaxAcceptedDays": 365, "peakHighF": 95, "peakDate": "2009-04-20", "daysRoundedHighAtLeast90F": 5 }, { "station": "lax", "year": 2010, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 20.05, "tmaxAcceptedDays": 365, "peakHighF": 105.1, "peakDate": "2010-09-27", "daysRoundedHighAtLeast90F": 4 }, { "station": "lax", "year": 2011, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 9.88, "tmaxAcceptedDays": 365, "peakHighF": 91.9, "peakDate": "2011-10-13", "daysRoundedHighAtLeast90F": 1 }, { "station": "lax", "year": 2012, "periodType": "calendar year", "expectedDays": 366, "precipAcceptedDays": 366, "precipIn": 8.91, "tmaxAcceptedDays": 366, "peakHighF": 98.1, "peakDate": "2012-09-15", "daysRoundedHighAtLeast90F": 3 }, { "station": "lax", "year": 2013, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 3.65, "tmaxAcceptedDays": 365, "peakHighF": 91.9, "peakDate": "2013-08-30", "daysRoundedHighAtLeast90F": 5 }, { "station": "lax", "year": 2014, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 8.3, "tmaxAcceptedDays": 365, "peakHighF": 97, "peakDate": "2014-05-15", "daysRoundedHighAtLeast90F": 8 }, { "station": "lax", "year": 2015, "periodType": "calendar year", "expectedDays": 365, "precipAcceptedDays": 365, "precipIn": 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retained as zero measured precipitation", "annualRule": "report rain total only when every expected calendar day has an accepted precipitation value", "warning": "research extraction from GHCNd, not certified official annual climate report; revisions and rounding can change values" } }, "provenance": { "accessed": "2026-10-02", "code": "Original PointCast atlas code by Codex", "art": "Original SVG square-glasses editorial guides; no imported Nouns token assets or official partnership", "dataSha256": { "weather-data.json": "ca9afa472e8d9042b1c7813d93e35cfee2b16d1382365adb2634894743a1899b", "monthly-normals.csv": "db0237cbee33264e1f0f657fd88bcf96f291217924cfe0d3615919c2289fbae0", "observed-calendar-years.csv": "af16b9396f2d27ddb3697ddb09a0928dacfbaf0bd8c5d4de05f8432c1cee596b", "noaa-lax-1991-2020.csv": "a5505d14850b573b76f49e26124fb5ba927d33317d47f2bc5ef2fbda81f544e3", "noaa-downtown-la-1991-2020.csv": "b780e7c7c85a2dd5f39b99fc5fc8a3f269f78d617025630e7ee53e6915cea4a8", 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