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May Weather at Chulitna, Chulitna Airport Alaska, United States

Daily high temperatures increase by 12°F, from 48°F to 60°F, rarely falling below 42°F or exceeding 69°F.

Daily low temperatures increase by 11°F, from 33°F to 44°F, rarely falling below 25°F or exceeding 50°F.

For reference, on July 6, the hottest day of the year, temperatures at Chulitna, Chulitna Airport typically range from 51°F to 66°F, while on January 18, the coldest day of the year, they range from 8°F to 19°F.

Average High and Low Temperature in May at Chulitna, Chulitna Airport

Average High and Low Temperature in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°FAprJunMay 148°FMay 148°F33°F33°FMay 3160°FMay 3160°F44°F44°FMay 1152°FMay 1152°F37°F37°FMay 2156°FMay 2156°F41°F41°F
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.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. The horizontal axis is the day, 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 May at Chulitna, Chulitna Airport

Average Hourly Temperature in May at Chulitna, Chulitna AirportMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJunfreezingfreezingvery coldcoldcoolcool
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.

Sorsele, Sweden (3,545 miles away) is the far-away foreign place with temperatures most similar to Chulitna, Chulitna Airport (view comparison).

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The month of May at Chulitna, Chulitna Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 63% throughout the month.

The clearest day of the month is May 4, with clear, mostly clear, or partly cloudy conditions 38% of the time.

For reference, on July 24, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 71%, while on March 15, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 46%.

Cloud Cover Categories in May at Chulitna, Chulitna Airport

Cloud Cover Categories in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunMay 137%May 137%May 3136%May 3136%May 1137%May 1137%May 2137%May 2137%clearmostly clearpartly cloudymostly cloudyovercast
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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Chulitna, Chulitna Airport, the chance of a wet day over the course of May is very rapidly increasing, starting the month at 22% and ending it at 39%.

For reference, the year's highest daily chance of a wet day is 51% on July 30, and its lowest chance is 18% on March 27.

Over the course of May at Chulitna, Chulitna Airport, the chance of a day with only rain increases from 18% to 39%, the chance of a day with mixed snow and rain decreases from 3% to 0%, and the chance of a day with only snow remains an essentially constant 0% throughout.

Probability of Precipitation in May at Chulitna, Chulitna Airport

Probability of Precipitation in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%AprJunMay 122%May 122%May 3139%May 3139%May 1125%May 1125%May 2133%May 2133%snowmixedrain
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).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during May at Chulitna, Chulitna Airport is rapidly increasing, starting the month at 1.2 inches, when it rarely exceeds 2.1 inches or falls below 0.4 inches, and ending the month at 3.0 inches, when it rarely exceeds 4.3 inches or falls below 1.3 inches.

Average Monthly Rainfall in May at Chulitna, Chulitna Airport

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.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during May at Chulitna, Chulitna Airport is decreasing, starting the month at 1.2 inches, when it rarely exceeds 3.8 inches or falls below -0.0 inches, and ending the month at 0.1 inches, when it rarely exceeds 0.1 inches or falls below -0.0 inches.

Average Monthly Snowfall in May at Chulitna, Chulitna Airport

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.

Over the course of May at Chulitna, Chulitna Airport, the length of the day is very rapidly increasing. From the start to the end of the month, the length of the day increases by 2 hours, 47 minutes, implying an average daily increase of 5 minutes, 34 seconds, and weekly increase of 38 minutes, 57 seconds.

The shortest day of the month is May 1, with 16 hours, 39 minutes of daylight and the longest day is May 31, with 19 hours, 26 minutes of daylight.

Hours of Daylight and Twilight in May at Chulitna, Chulitna Airport

Hours of Daylight and Twilight in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAprJunnightnightdayday16 hr, 39 minMay 116 hr, 39 minMay 119 hr, 26 minMay 3119 hr, 26 minMay 3118 hr, 9 minMay 1618 hr, 9 minMay 16
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.

The latest sunrise of the month at Chulitna, Chulitna Airport is 5:37 AM on May 1 and the earliest sunrise is 1 hour, 23 minutes earlier at 4:15 AM on May 31.

The earliest sunset is 10:17 PM on May 1 and the latest sunset is 1 hour, 24 minutes later at 11:41 PM on May 31.

Daylight saving time is observed at Chulitna, Chulitna Airport during 2024, but it neither starts nor ends during May, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 3:53 AM and sets 20 hours, 15 minutes later, at 12:08 AM, while on December 21, the shortest day of the year, it rises at 10:34 AM and sets 4 hours, 46 minutes later, at 3:20 PM.

Sunrise & Sunset with Twilight in May at Chulitna, Chulitna Airport

Sunrise & Sunset with Twilight in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM2 AMAprJun4:15 AM4:15 AM11:41 PMMay 3111:41 PMMay 315:37 AM5:37 AM10:17 PMMay 110:17 PMMay 15:06 AM5:06 AM4:38 AM4:38 AM11:01 PMMay 1611:01 PMMay 16SolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of May. 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 May at Chulitna, Chulitna Airport

Solar Elevation and Azimuth in May at Chulitna, Chulitna AirportMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMAprJun00101020202030304050000101020203030304040
northeastsouthwest
Solar elevation and azimuth over the course of May 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 May 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in May at Chulitna, Chulitna Airport

Moon Rise, Set & Phases in May at Chulitna, Chulitna AirportMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 810:22 AMApr 810:22 AMApr 233:50 PMApr 233:50 PMMay 77:23 PMMay 77:23 PMMay 235:54 AMMay 235:54 AMJun 64:38 AMJun 64:38 AM6:58 AM6:58 AM9:55 PM9:55 PM10:22 PM10:22 PM5:48 AM5:48 AM4:58 AM4:58 AM11:11 PM11:11 PM11:33 PM11:33 PM2:13 AM2:13 AM12:00 AM12:00 AM
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.
May 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%5:46 AMSE11:35 AMSW-8:40 AMS231,655 mi
2
36%5:36 AMSE1:34 PMWSW-9:34 AMS229,380 mi
3
25%5:28 AMESE3:27 PMWSW-10:25 AMS227,488 mi
4
15%5:20 AME5:18 PMW-11:14 AMS226,184 mi
5
7%5:13 AME7:09 PMWNW-12:03 PMS225,663 mi
6
2%5:06 AMENE9:06 PMWNW-12:53 PMS226,065 mi
7
0%4:58 AMNE11:11 PMNW-1:45 PMS227,440 mi
8
1%4:47 AMNE--2:40 PMS229,724 mi
9
5%-1:30 AMNNW4:29 AMNNE3:37 PMS232,741 mi
10
11%4:35 PMS236,223 mi
11
18%5:32 PMS239,857 mi
12
27%6:26 PMS243,332 mi
13
37%-5:07 AMNNW8:53 AMNNE7:15 PMS246,382 mi
14
47%-4:53 AMNW10:46 AMNE8:01 PMS248,802 mi
15
50%-4:44 AMNW12:27 PMNE8:43 PMS250,464 mi
16
66%-4:37 AMWNW1:59 PMENE9:22 PMS251,311 mi
17
75%-4:30 AMWNW3:28 PME10:01 PMS251,354 mi
18
83%-4:24 AMW4:55 PME10:39 PMS250,662 mi
19
90%-4:17 AMW6:24 PMESE11:19 PMS249,347 mi
20
93%-4:11 AMWSW7:57 PMESE--
21
95%-4:03 AMSW9:39 PMSE12:01 AMS247,551 mi
22
99%-3:55 AMSW11:33 PMSSE12:47 AMS245,429 mi
23
100%-3:43 AMSSW-1:38 AMS243,136 mi
24
99%1:59 AMS3:09 AMS-2:34 AMS240,810 mi
25
96%3:34 AMS238,561 mi
26
90%4:36 AMS236,464 mi
27
83%4:19 AMSSE6:55 AMSSW-5:37 AMS234,562 mi
28
73%4:00 AMSSE9:12 AMSW-6:35 AMS232,873 mi
29
62%3:49 AMSE11:12 AMSW-7:30 AMS231,413 mi
30
50%3:41 AMESE1:05 PMWSW-8:21 AMS230,207 mi
31
39%3:34 AMESE2:52 PMW-9:09 AMS229,311 mi

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 chance that a given day will be muggy at Chulitna, Chulitna Airport is essentially constant during May, remaining around 0% throughout.

For reference, on June 29, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in May at Chulitna, Chulitna Airport

Humidity Comfort Levels in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AprJunMay 10%May 10%May 310%May 310%May 110%May 110%May 210%May 210%drydrycomfortablecomfortable
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.

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 at Chulitna, Chulitna Airport is essentially constant during May, remaining within 0.2 miles per hour of 5.1 miles per hour throughout.

For reference, on January 21, the windiest day of the year, the daily average wind speed is 8.1 miles per hour, while on May 2, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.

The lowest daily average wind speed during May is 4.9 miles per hour on May 2.

Average Wind Speed in May at Chulitna, Chulitna Airport

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Chulitna, Chulitna Airport throughout May is predominantly from the south, with a peak proportion of 45% on May 27.

Wind Direction in May at Chulitna, Chulitna Airport

Wind Direction in May at Chulitna, Chulitna AirportNSMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%AprJunwestsoutheastnorth
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).

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 at Chulitna, Chulitna Airport typically lasts for 4.4 months (136 days), from around May 8 to around September 21, rarely starting before April 21 or after May 25, and rarely ending before September 2 or after October 8.

During May at Chulitna, Chulitna Airport, the chance that a given day is within the growing season is very rapidly increasing rising from 30% to 97% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in May at Chulitna, Chulitna Airport

Time Spent in Various Temperature Bands and the Growing Season in May at Chulitna, Chulitna Airportgrowing seasonMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunMay 130%May 130%97%May 3197%May 3159%May 1159%May 1183%May 2183%May 21Apr 2110%Apr 2110%frigidfreezingvery coldcoldcoolcomfortable
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.

The average accumulated growing degree days at Chulitna, Chulitna Airport are gradually increasing during May, increasing by 49°F, from 2°F to 50°F, over the course of the month.

Growing Degree Days in May at Chulitna, Chulitna Airport

Growing Degree Days in May at Chulitna, Chulitna AirportMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313110°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FAprJunMay 12°FMay 12°FMay 3150°FMay 3150°FMay 117°FMay 117°FMay 2122°FMay 2122°F
The average growing degree days accumulated over the course of May, 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 at Chulitna, Chulitna Airport is essentially constant during May, remaining within 0.2 kWh of 5.3 kWh throughout.

Average Daily Incident Shortwave Solar Energy in May at Chulitna, Chulitna Airport

Average Daily Incident Shortwave Solar Energy in May at Chulitna, Chulitna AirportMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhAprJunMay 15.0 kWhMay 15.0 kWhMay 315.5 kWhMay 315.5 kWhMay 115.3 kWhMay 115.3 kWhMay 215.4 kWhMay 215.4 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

This report illustrates the typical weather at Chulitna, Chulitna Airport, 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

Chulitna, Chulitna Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Talkeetna Airport, New Wasilla Airport, McKinley National Park Airport, Birchwood Airport, Palmer Municipal Airport, Elmendorf Air Force Base, Bryant Army Heliport, and Merrill Field Airport.

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.

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