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Climate and Average Weather Year Round in Kara Suu Kyrgyzstan

In Kara Suu, the summers are hot, arid, and mostly clear and the winters are very cold, snowy, and partly cloudy. Over the course of the year, the temperature typically varies from 24°F to 92°F and is rarely below 13°F or above 98°F.

Based on the beach/pool score, the best time of year to visit Kara Suu for hot-weather activities is from late June to mid August.

Climate in Kara Suu

very coldcoldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow95%95%33%33%clearovercastprecipitation: 1.0 inprecipitation: 1.0 in0.1 in0.1 inmuggy: 3%muggy: 3%0%0%drydrybeach/pool score: 8.1beach/pool score: 8.10.00.0
Kara Suu weather by month. Click on each chart for more information.

The hot season lasts for 3.7 months, from May 24 to September 16, with an average daily high temperature above 81°F. The hottest month of the year in Kara Suu is July, with an average high of 92°F and low of 68°F.

The cold season lasts for 3.3 months, from November 24 to March 2, with an average daily high temperature below 49°F. The coldest month of the year in Kara Suu is January, with an average low of 24°F and high of 39°F.

Average High and Low Temperature in Kara Suu

Average High and Low Temperature in Kara SuuhotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 1438°FJan 1438°FJul 2192°FJul 2192°F24°F24°F68°F68°FMay 2481°FMay 2481°FSep 1681°FSep 1681°FNov 2449°FNov 2449°FMar 249°FMar 249°F58°F58°F57°F57°F33°F33°F33°F33°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 39°F43°F55°F69°F79°F88°F92°F90°F81°F68°F53°F42°F
Temp. 31°F35°F47°F59°F68°F77°F80°F78°F69°F56°F44°F34°F
Low 24°F28°F38°F49°F57°F64°F68°F65°F57°F46°F36°F28°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 Kara Suu

Average Hourly Temperature in Kara SuuJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfreezingfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotfreezingwarmfreezing
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.

St. Louis, Missouri, United States (6,860 miles away) is the far-away foreign place with temperatures most similar to Kara Suu (view comparison).

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In Kara Suu, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Kara Suu begins around May 28 and lasts for 4.6 months, ending around October 15.

The clearest month of the year in Kara Suu is August, during which on average the sky is clear, mostly clear, or partly cloudy 94% of the time.

The cloudier part of the year begins around October 15 and lasts for 7.4 months, ending around May 28.

The cloudiest month of the year in Kara Suu is February, during which on average the sky is overcast or mostly cloudy 65% of the time.

Cloud Cover Categories in Kara Suu

Cloud Cover Categories in Kara SuuclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 995%Aug 995%Mar 333%Mar 333%May 2863%May 2863%Oct 1564%Oct 1564%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 64%65%65%57%45%22%8%6%14%37%54%59%
Clearer 36%35%35%43%55%78%92%94%86%63%46%41%

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

The wetter season lasts 7.8 months, from October 13 to June 7, with a greater than 9% chance of a given day being a wet day. The month with the most wet days in Kara Suu is March, with an average of 5.0 days with at least 0.04 inches of precipitation.

The drier season lasts 4.2 months, from June 7 to October 13. The month with the fewest wet days in Kara Suu is August, with an average of 0.6 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. Based on this categorization, the most common form of precipitation in Kara Suu changes throughout the year.

Rain alone is the most common for 12 months, from January 20 to January 12. The month with the most days of rain alone in Kara Suu is April, with an average of 4.7 days.

Snow alone is the most common for 1.1 weeks, from January 12 to January 20. The month with the most days of snow alone in Kara Suu is January, with an average of 0.9 days.

Daily Chance of Precipitation in Kara Suu

Daily Chance of Precipitation in Kara SuurainJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 2417%Mar 2417%Aug 261%Aug 261%Jan 128%Jan 128%Oct 139%Oct 139%Jun 79%Jun 79%NowNowrainsnow
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 1.1d2.2d4.5d4.7d4.1d2.1d1.0d0.6d0.9d2.9d3.6d2.4d
Mixed 0.7d0.8d0.4d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.4d0.8d
Snow 0.9d0.7d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.2d0.7d
Any 2.8d3.7d5.0d4.7d4.1d2.1d1.0d0.6d0.9d3.0d4.3d3.8d

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. Kara Suu experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.9 months, from October 10 to June 6, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Kara Suu is April, with an average rainfall of 1.0 inches.

The rainless period of the year lasts for 4.1 months, from June 6 to October 10. The month with the least rain in Kara Suu is August, with an average rainfall of 0.1 inches.

Average Monthly Rainfall in Kara Suu

Average Monthly Rainfall in Kara SuurainrainJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inApr 261.0 inApr 261.0 inAug 250.1 inAug 250.1 inNov 100.8 inNov 100.8 inJan 200.2 inJan 200.2 inJun 60.5 inJun 60.5 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 0.2″0.5″0.8″1.0″0.8″0.4″0.2″0.1″0.2″0.6″0.8″0.5″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Kara Suu experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 3.6 months, from November 23 to March 9, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Kara Suu is February, with an average snowfall of 2.3 inches.

The snowless period of the year lasts for 8.4 months, from March 9 to November 23. The least snow falls around July 8, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Kara Suu

Average Monthly Snowfall in Kara SuusnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inFeb 32.4 inFeb 32.4 inJul 80.0 inJul 80.0 inNov 231.0 inNov 231.0 inMar 91.0 inMar 91.0 inNowNow
The average snowfall (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 rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 2.1″2.3″0.7″0.0″0.0″0.0″0.0″0.0″0.0″0.3″0.8″1.5″

The length of the day in Kara Suu varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 15 minutes of daylight; the longest day is June 21, with 15 hours, 6 minutes of daylight.

Hours of Daylight and Twilight in Kara Suu

Hours of Daylight and Twilight in Kara SuuJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2015 hr, 6 minJun 2115 hr, 6 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 15 minDec 219 hr, 15 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 9.6h10.7h12.0h13.3h14.5h15.0h14.7h13.7h12.4h11.1h9.9h9.3h

The earliest sunrise is at 5:36 AM on June 14, and the latest sunrise is 2 hours, 56 minutes later at 8:32 AM on January 5. The earliest sunset is at 5:40 PM on December 8, and the latest sunset is 3 hours, 3 minutes later at 8:43 PM on June 27.

Daylight saving time (DST) is not observed in Kara Suu during 2024.

Sunrise & Sunset with Twilight in Kara Suu

Sunrise & Sunset with Twilight in Kara SuuJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 145:36 AMJun 145:36 AM8:43 PMJun 278:43 PMJun 27Dec 85:40 PMDec 85:40 PM8:32 AMJan 58:32 AMJan 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
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 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 Kara Suu

Solar Elevation and Azimuth in Kara SuuJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404050506060700000101010102020202030303040405050602673NowNow
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 Kara Suu

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 Kara Suu, 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, staying within 2% of 2% throughout.

Humidity Comfort Levels in Kara Suu

Humidity Comfort Levels in Kara SuuJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 150%Feb 150%Jul 73%Jul 73%NowNowcomfortablecomfortabledrydryhumidhumid
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 0.0d0.0d0.0d0.0d0.3d0.7d0.9d0.5d0.1d0.0d0.0d0.0d

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 Kara Suu experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from April 20 to September 22, with average wind speeds of more than 4.9 miles per hour. The windiest month of the year in Kara Suu is July, with an average hourly wind speed of 5.7 miles per hour.

The calmer time of year lasts for 7.0 months, from September 22 to April 20. The calmest month of the year in Kara Suu is November, with an average hourly wind speed of 4.1 miles per hour.

Average Wind Speed in Kara Suu

Average Wind Speed in Kara SuuwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mphJul 95.7 mphJul 95.7 mphNov 244.1 mphNov 244.1 mphApr 204.9 mphApr 204.9 mphSep 224.9 mphSep 224.9 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) 4.24.34.64.95.15.45.75.45.04.44.14.2

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

The wind is most often from the west for 5.3 months, from April 25 to October 3, with a peak percentage of 51% on July 21. The wind is most often from the east for 6.7 months, from October 3 to April 25, with a peak percentage of 64% on January 1.

Wind Direction in Kara Suu

Wind Direction in Kara SuuEWEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
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).

To characterize how pleasant the weather is in Kara Suu 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 Kara Suu for general outdoor tourist activities is from mid July to late September, with a peak score in the last week of August.

Tourism Score in Kara Suu

Tourism Score in Kara Suubest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.28.20.00.0NowNowtemperaturetemperature 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 Kara Suu for hot-weather activities is from late June to mid August, with a peak score in the last week of July.

Beach/Pool Score in Kara Suu

Beach/Pool Score in Kara Suubest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.18.10.00.0NowNowtemperaturetemperature 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 Kara Suu typically lasts for 7.7 months (236 days), from around March 18 to around November 10, rarely starting before February 27 or after April 11, and rarely ending before October 20 or after November 28.

Time Spent in Various Temperature Bands and the Growing Season in Kara Suu

Time Spent in Various Temperature Bands and the Growing Season in Kara Suugrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1850%Mar 1850%Nov 1050%Nov 1090%Apr 1190%Apr 1190%Oct 2090%Oct 2010%Feb 2710%Feb 2710%Nov 2810%Nov 280%Dec 240%Dec 24Jul 21100%Jul 21100%freezingvery coldcoolcomfortablewarmhotcoldfrigid
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 Kara Suu should appear around March 30, only rarely appearing before March 21 or after April 9.

Growing Degree Days in Kara Suu

Growing Degree Days in Kara SuuJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FMar 3088°FMar 3088°FMay 28900°FMay 28900°FJul 31,800°FJul 31,800°FDec 314,306°FDec 314,306°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 3.2 months, from May 20 to August 28, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest month of the year in Kara Suu is July, with an average of 8.0 kWh.

The darker period of the year lasts for 3.7 months, from October 31 to February 19, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest month of the year in Kara Suu is December, with an average of 2.0 kWh.

Average Daily Incident Shortwave Solar Energy in Kara Suu

Average Daily Incident Shortwave Solar Energy in Kara SuubrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJul 18.1 kWhJul 18.1 kWhDec 192.0 kWhDec 192.0 kWhMay 206.9 kWhMay 206.9 kWhAug 286.9 kWhAug 286.9 kWhOct 313.2 kWhOct 313.2 kWhFeb 193.2 kWhFeb 193.2 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) 2.23.04.25.66.77.88.07.35.94.02.62.0

For the purposes of this report, the geographical coordinates of Kara Suu are 40.705 deg latitude, 72.867 deg longitude, and 2,441 ft elevation.

The topography within 2 miles of Kara Suu contains only modest variations in elevation, with a maximum elevation change of 236 feet and an average elevation above sea level of 2,450 feet. Within 10 miles contains only modest variations in elevation (1,493 feet). Within 50 miles contains very significant variations in elevation (13,691 feet).

The area within 2 miles of Kara Suu is covered by cropland (87%), within 10 miles by cropland (98%), and within 50 miles by cropland (38%) and grassland (25%).

This report illustrates the typical weather in Kara Suu, 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 is only a single weather station, Osh Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Kara Suu.

At a distance of 12 kilometers from Kara Suu, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

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

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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.