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Climate and Average Weather Year Round in Lancaster California, United States

In Lancaster, the summers are hot, arid, and clear and the winters are cold and partly cloudy. Over the course of the year, the temperature typically varies from 33°F to 97°F and is rarely below 23°F or above 104°F.

Based on the tourism score, the best time of year to visit Lancaster for warm-weather activities is from late May to late September.

Climate in Lancaster

coolcomfortablewarmhotswelteringhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow90%90%54%54%clearovercastprecipitation: 2.4 inprecipitation: 2.4 in0.0 in0.0 inmuggy: 0%muggy: 0%0%0%drydrytourism score: 7.6tourism score: 7.60.80.8
Lancaster weather by month. Click on each chart for more information.

The hot season lasts for 3.2 months, from June 11 to September 18, with an average daily high temperature above 89°F. The hottest month of the year in Lancaster is July, with an average high of 96°F and low of 68°F.

The cool season lasts for 3.4 months, from November 19 to March 1, with an average daily high temperature below 65°F. The coldest month of the year in Lancaster is December, with an average low of 33°F and high of 58°F.

Average High and Low Temperature in Lancaster

Average High and Low Temperature in LancasterhotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FDec 3057°FDec 3057°FAug 197°FAug 197°F33°F33°F68°F68°FJun 1189°FJun 1189°FSep 1889°FSep 1889°FMar 165°FMar 165°F61°F61°F58°F58°F38°F38°F40°F40°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 59°F62°F68°F74°F82°F90°F96°F96°F90°F79°F66°F58°F
Temp. 45°F48°F54°F59°F68°F76°F82°F82°F74°F63°F51°F44°F
Low 34°F38°F42°F47°F55°F63°F68°F66°F59°F49°F39°F33°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Lancaster

Average Hourly Temperature in LancasterJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldvery coldvery coldvery coldcoldcoldcoldcoldcoolcoolcomfortablewarmwarmhotsweltering
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Torreblascopedro, Spain (5,901 miles away) and Damascus, Syria (7,450 miles) are the far-away foreign places with temperatures most similar to Lancaster (view comparison).

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In Lancaster, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Lancaster begins around April 24 and lasts for 6.3 months, ending around November 4.

The clearest month of the year in Lancaster is August, during which on average the sky is clear, mostly clear, or partly cloudy 89% of the time.

The cloudier part of the year begins around November 4 and lasts for 5.7 months, ending around April 24.

The cloudiest month of the year in Lancaster is February, during which on average the sky is overcast or mostly cloudy 45% of the time.

Cloud Cover Categories in Lancaster

Cloud Cover Categories in LancasterclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Sep 690%Sep 690%Feb 2254%Feb 2254%Apr 2472%Apr 2472%Nov 473%Nov 473%NowNowclearovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 42%45%38%29%23%13%12%11%11%20%32%41%
Clearer 58%55%62%71%77%87%88%89%89%80%68%59%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Lancaster varies throughout the year.

The wetter season lasts 4.4 months, from November 21 to April 2, with a greater than 10% chance of a given day being a wet day. The month with the most wet days in Lancaster is February, with an average of 5.1 days with at least 0.04 inches of precipitation.

The drier season lasts 7.6 months, from April 2 to November 21. The month with the fewest wet days in Lancaster is June, with an average of 0.2 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Lancaster is February, with an average of 5.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 19% on February 20.

Daily Chance of Precipitation in Lancaster

Daily Chance of Precipitation in LancasterwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 2019%Feb 2019%Jun 210%Jun 210%Nov 2110%Nov 2110%Apr 210%Apr 210%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 4.6d5.0d4.3d2.0d0.8d0.2d0.4d0.5d0.7d1.7d2.7d4.0d
Mixed 0.1d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.2d
Any 4.7d5.1d4.3d2.0d0.8d0.2d0.4d0.5d0.7d1.7d2.7d4.2d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Lancaster experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 5.8 months, from October 25 to April 17, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Lancaster is February, with an average rainfall of 2.4 inches.

The rainless period of the year lasts for 6.2 months, from April 17 to October 25. The month with the least rain in Lancaster is June, with an average rainfall of 0.0 inches.

Average Monthly Rainfall in Lancaster

Average Monthly Rainfall in LancasterrainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inFeb 182.4 inFeb 182.4 inJun 240.0 inJun 240.0 inJul 300.1 inJul 300.1 inOct 250.5 inOct 250.5 inApr 170.5 inApr 170.5 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 1.9″2.4″1.5″0.6″0.1″0.0″0.1″0.1″0.1″0.4″0.7″1.6″

The length of the day in Lancaster varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 50 minutes of daylight; the longest day is June 20, with 14 hours, 29 minutes of daylight.

Hours of Daylight and Twilight in Lancaster

Hours of Daylight and Twilight in LancasterJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1914 hr, 29 minJun 2014 hr, 29 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 50 minDec 219 hr, 50 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 10.1h11.0h12.0h13.1h14.0h14.4h14.2h13.4h12.4h11.3h10.3h9.9h

The earliest sunrise is at 5:38 AM on June 11, and the latest sunrise is 1 hour, 36 minutes later at 7:14 AM on November 2. The earliest sunset is at 4:41 PM on December 4, and the latest sunset is 3 hours, 28 minutes later at 8:09 PM on June 28.

Daylight saving time (DST) is observed in Lancaster during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

Sunrise & Sunset with Twilight and Daylight Saving Time in Lancaster

Sunrise & Sunset with Twilight and Daylight Saving Time in LancasterJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 115:38 AMJun 115:38 AM8:09 PMJun 288:09 PMJun 28Dec 44:41 PMDec 44:41 PM7:14 AMNov 27:14 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Lancaster

Solar Elevation and Azimuth in LancasterJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM00010101010202020303030404040505060607000010101020202020303030404040505060703279NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Lancaster

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Lancaster, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

Humidity Comfort Levels in Lancaster

Humidity Comfort Levels in LancasterJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 260%Mar 260%Aug 280%Aug 280%NowNowdrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.1d0.0d0.0d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Lancaster experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.0 months, from November 5 to July 4, with average wind speeds of more than 7.8 miles per hour. The windiest month of the year in Lancaster is April, with an average hourly wind speed of 8.9 miles per hour.

The calmer time of year lasts for 4.0 months, from July 4 to November 5. The calmest month of the year in Lancaster is September, with an average hourly wind speed of 6.7 miles per hour.

Average Wind Speed in Lancaster

Average Wind Speed in LancasterwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphApr 249.0 mphApr 249.0 mphSep 86.7 mphSep 86.7 mphNov 57.8 mphNov 57.8 mphJul 47.8 mphJul 47.8 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 8.78.48.58.98.68.27.56.96.77.38.28.8

The predominant average hourly wind direction in Lancaster varies throughout the year.

The wind is most often from the north for 1.7 weeks, from February 2 to February 14 and for 4.0 weeks, from November 8 to December 6, with a peak percentage of 34% on November 29. The wind is most often from the west for 8.8 months, from February 14 to November 8, with a peak percentage of 71% on June 4. The wind is most often from the east for 1.9 months, from December 6 to February 2, with a peak percentage of 37% on January 1.

Wind Direction in Lancaster

Wind Direction in LancasterENWNEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestnorthsoutheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Lancaster is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from July 3 to October 13, with an average temperature above 66°F. The month of the year in Lancaster with the warmest water is August, with an average temperature of 68°F.

The time of year with cooler water lasts for 4.7 months, from December 9 to May 1, with an average temperature below 60°F. The month of the year in Lancaster with the coolest water is February, with an average temperature of 58°F.

Average Water Temperature in Lancaster

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 59°F58°F59°F59°F62°F64°F67°F68°F68°F66°F63°F60°F

To characterize how pleasant the weather is in Lancaster throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Lancaster for general outdoor tourist activities is from late May to late September, with a peak score in the last week of June.

Tourism Score in Lancaster

Tourism Score in Lancasterbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.67.60.80.87.67.6temperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Lancaster for hot-weather activities is from late June to late August, with a peak score in the third week of July.

Beach/Pool Score in Lancaster

Beach/Pool Score in Lancasterbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.27.20.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Lancaster typically lasts for 7.9 months (242 days), from around March 13 to around November 10, rarely starting before February 9 or after April 11, and rarely ending before October 22 or after November 28.

Time Spent in Various Temperature Bands and the Growing Season in Lancaster

Time Spent in Various Temperature Bands and the Growing Season in Lancastergrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1350%Mar 1350%Nov 1050%Nov 1090%Apr 1190%Apr 1190%Oct 2290%Oct 2210%Feb 910%Feb 910%Nov 2810%Nov 280%Dec 220%Dec 22Jul 17100%Jul 17100%very coldcoldcoolcomfortablewarmhotfreezingsweltering
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Lancaster should appear around February 8, only rarely appearing before January 27 or after February 24.

Growing Degree Days in Lancaster

Growing Degree Days in LancasterJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FFeb 889°FFeb 889°FMay 15900°FMay 15900°FJun 251,800°FJun 251,800°FDec 315,076°FDec 315,076°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.8 months, from April 25 to August 19, with an average daily incident shortwave energy per square meter above 7.6 kWh. The brightest month of the year in Lancaster is June, with an average of 8.7 kWh.

The darker period of the year lasts for 3.2 months, from November 5 to February 13, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest month of the year in Lancaster is December, with an average of 3.0 kWh.

Average Daily Incident Shortwave Solar Energy in Lancaster

Average Daily Incident Shortwave Solar Energy in LancasterbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJun 178.8 kWhJun 178.8 kWhDec 242.9 kWhDec 242.9 kWhApr 257.6 kWhApr 257.6 kWhAug 197.6 kWhAug 197.6 kWhNov 54.1 kWhNov 54.1 kWhFeb 134.1 kWhFeb 134.1 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 3.34.25.77.28.28.78.47.66.55.03.73.0

For the purposes of this report, the geographical coordinates of Lancaster are 34.698 deg latitude, -118.137 deg longitude, and 2,356 ft elevation.

The topography within 2 miles of Lancaster contains only modest variations in elevation, with a maximum elevation change of 121 feet and an average elevation above sea level of 2,363 feet. Within 10 miles contains only modest variations in elevation (1,775 feet). Within 50 miles contains very significant variations in elevation (10,013 feet).

The area within 2 miles of Lancaster is covered by shrubs (54%) and artificial surfaces (46%), within 10 miles by shrubs (67%) and grassland (11%), and within 50 miles by shrubs (71%) and grassland (12%).

This report illustrates the typical weather in Lancaster, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Lancaster.

For each station, the records are corrected for the elevation difference between that station and Lancaster according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Lancaster is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lancaster and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Lancaster and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.