Spring Weather at Chevak Airport United States

Daily high temperatures increase by 32°F, from 20°F to 51°F, rarely falling below 1°F or exceeding 62°F.

Daily low temperatures increase by 32°F, from 7°F to 38°F, rarely falling below -11°F or exceeding 45°F.

For reference, on July 18, the hottest day of the year, temperatures at Chevak Airport typically range from 49°F to 59°F, while on January 20, the coldest day of the year, they range from 3°F to 15°F.

The figure below shows you a compact characterization of the hourly average spring temperatures. 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.

Kárášjohka, Norway (3,372 miles away) is the far-away foreign place with temperatures most similar to Chevak Airport (view comparison).

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The spring at Chevak Airport experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 72% to 66%. The lowest chance of overcast or mostly cloudy conditions is 65% on May 17.

The clearest day of the spring is May 17, with clear, mostly clear, or partly cloudy conditions 35% of the time.

For reference, on January 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 79%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 40%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Chevak Airport, the chance of a wet day over the course of the spring is gradually increasing, starting the season at 17% and ending it at 20%.

For reference, the year's highest daily chance of a wet day is 36% on August 14, and its lowest chance is 13% on March 25.

Over the course of the spring at Chevak Airport, the chance of a day with only rain increases from 1% to 19%, the chance of a day with mixed snow and rain decreases from 4% to 1%, and the chance of a day with only snow decreases from 11% to 0%.

Rainfall

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

The average sliding 31-day rainfall during the spring at Chevak Airport is increasing, starting the season at 0.2 inches, when it rarely exceeds 0.6 inches, and ending the season at 1.1 inches, when it rarely exceeds 2.0 inches or falls below 0.4 inches.

The lowest average 31-day accumulation is 0.2 inches on March 12.

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 the spring at Chevak Airport is very rapidly decreasing, starting the season at 7.1 inches, when it rarely exceeds 12.9 inches or falls below 1.3 inches, and ending the season at 0.2 inches, when it rarely exceeds 0.5 inches or falls below -0.0 inches.

Over the course of the spring at Chevak Airport, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 8 hours, 23 minutes, implying an average daily increase of 5 minutes, 32 seconds, and weekly increase of 38 minutes, 43 seconds.

The shortest day of the spring is March 1, with 10 hours, 28 minutes of daylight and the longest day is May 31, with 18 hours, 51 minutes of daylight.

The latest sunrise of the spring at Chevak Airport is 9:32 AM on March 10 and the earliest sunrise is 3 hours, 58 minutes earlier at 5:35 AM on May 31.

The earliest sunset is 7:29 PM on March 1 and the latest sunset is 4 hours, 58 minutes later at 12:26 AM on May 31.

Daylight saving time (DST) ends at 3:00 AM on March 10, 2024, shifting sunrise and sunset to be an hour earlier.

For reference, on June 20, the longest day of the year, the Sun rises at 5:18 AM and sets 19 hours, 31 minutes later, at 12:49 AM, while on December 21, the shortest day of the year, it rises at 11:21 AM and sets 5 hours, 20 minutes later, at 4:40 PM.

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.

The figure below presents a compact representation of key lunar data for the spring of 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.

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 Chevak Airport is essentially constant during the spring, remaining around 0% throughout.

For reference, on July 25, 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.

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 Chevak Airport is very rapidly decreasing during the spring, decreasing from 15.5 miles per hour to 10.5 miles per hour over the course of the season.

For reference, on February 11, the windiest day of the year, the daily average wind speed is 16.5 miles per hour, while on June 29, the calmest day of the year, the daily average wind speed is 9.5 miles per hour.

The hourly average wind direction at Chevak Airport throughout the spring is predominantly from the north, with a peak proportion of 45% on April 19.

Chevak Airport 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 surface water temperature at Chevak Airport is increasing during the spring, rising by 7°F, from 31°F to 38°F, over the course of the season.

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 Chevak Airport typically lasts for 4.1 months (125 days), from around May 27 to around September 29, rarely starting before May 9 or after June 13, and rarely ending before September 14 or after October 15.

During the spring at Chevak Airport, the chance that a given day is within the growing season is very rapidly increasing rising from 0% to 61% over the course of the 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 Chevak Airport are essentially constant during the spring, remaining within 7°F of 7°F throughout.

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 Chevak Airport is very rapidly increasing during the spring, rising by 3.6 kWh, from 1.5 kWh to 5.2 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Chevak Airport are 61.537 deg latitude, -165.603 deg longitude, and 39 ft elevation.

The topography within 2 miles of Chevak Airport is essentially flat, with a maximum elevation change of 75 feet and an average elevation above sea level of 25 feet. Within 10 miles is essentially flat (131 feet). Within 50 miles contains only modest variations in elevation (2,388 feet).

The area within 2 miles of Chevak Airport is covered by shrubs (47%), herbaceous vegetation (28%), and sparse vegetation (24%), within 10 miles by herbaceous vegetation (35%) and shrubs (34%), and within 50 miles by water (55%) and herbaceous vegetation (20%).