Summer Weather in Dillingham United States

Daily high temperatures are around 60°F, rarely falling below 49°F or exceeding 71°F. The highest daily average high temperature is 63°F on July 24.

Daily low temperatures increase by 5°F, from 41°F to 46°F, rarely falling below 35°F or exceeding 55°F. The highest daily average low temperature is 50°F on July 29.

For reference, on July 22, the hottest day of the year, temperatures in Dillingham typically range from 49°F to 63°F, while on January 18, the coldest day of the year, they range from 11°F to 22°F.

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

Strömsund, Sweden (3,944 miles away) and Lakselv, Norway (3,520 miles) are the far-away foreign places with temperatures most similar to Dillingham (view comparison).

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The summer in Dillingham experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 62% throughout the season. The highest chance of overcast or mostly cloudy conditions is 64% on July 18.

The clearest day of the summer is August 27, with clear, mostly clear, or partly cloudy conditions 40% of the time.

For reference, on January 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on October 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 46%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Dillingham, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 26% and ending it at 37%.

For reference, the year's highest daily chance of a wet day is 40% on September 7, and its lowest chance is 20% on April 21.

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 summer in Dillingham is rapidly increasing, starting the season at 1.8 inches, when it rarely exceeds 3.5 inches or falls below 0.6 inches, and ending the season at 3.7 inches, when it rarely exceeds 6.0 inches or falls below 1.8 inches.

Over the course of the summer in Dillingham, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 3 hours, 58 minutes, implying an average daily decrease of 2 minutes, 37 seconds, and weekly decrease of 18 minutes, 20 seconds.

The shortest day of the summer is August 31, with 14 hours, 4 minutes of daylight and the longest day is June 20, with 18 hours, 31 minutes of daylight.

The earliest sunrise of the summer in Dillingham is 5:19 AM on June 18 and the latest sunrise is 2 hours, 11 minutes later at 7:30 AM on August 31.

The latest sunset is 11:51 PM on June 22 and the earliest sunset is 2 hours, 16 minutes earlier at 9:35 PM on August 31.

Daylight saving time is observed in Dillingham during 2024, but it neither starts nor ends during the summer, so the entire season is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:20 AM and sets 18 hours, 31 minutes later, at 11:51 PM, while on December 21, the shortest day of the year, it rises at 10:27 AM and sets 6 hours, 10 minutes later, at 4:37 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 summer 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 in Dillingham is essentially constant during the summer, remaining around 0% throughout.

For reference, on July 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.

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 Dillingham is essentially constant during the summer, remaining within 0.7 miles per hour of 9.2 miles per hour throughout.

For reference, on January 27, the windiest day of the year, the daily average wind speed is 14.6 miles per hour, while on June 27, the calmest day of the year, the daily average wind speed is 8.4 miles per hour.

The lowest daily average wind speed during the summer is 8.4 miles per hour on June 29.

The wind direction in Dillingham during the summer is predominantly out of the east from June 1 to June 14, the south from June 14 to August 5, and the west from August 5 to August 31.

Dillingham 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 in Dillingham is very rapidly increasing during the summer, rising by 12°F, from 43°F to 55°F, over the course of the season.

The highest average surface water temperature during the summer is 56°F on August 19.

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 Dillingham typically lasts for 4.1 months (127 days), from around May 19 to around September 23, rarely starting before April 30 or after June 6, and rarely ending before September 4 or after October 10.

The summer in Dillingham is more likely than not fully within the growing season, with the chance that a given day is in the growing season reaching a high of 100% on July 14.

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 in Dillingham are increasing during the summer, increasing by 418°F, from 40°F to 458°F, over the course of the season.

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 in Dillingham is very rapidly decreasing during the summer, falling by 2.0 kWh, from 5.4 kWh to 3.3 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 5.5 kWh on June 7.

For the purposes of this report, the geographical coordinates of Dillingham are 59.040 deg latitude, -158.458 deg longitude, and 98 ft elevation.

The topography within 2 miles of Dillingham contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 21 feet. Within 10 miles also contains only modest variations in elevation (299 feet). Within 50 miles contains only modest variations in elevation (3,553 feet).

The area within 2 miles of Dillingham is covered by water (68%), herbaceous vegetation (16%), and shrubs (13%), within 10 miles by shrubs (45%) and herbaceous vegetation (28%), and within 50 miles by shrubs (51%) and water (27%).