August weather forecastDelta Junction, AK
August
Weather in August
Entering August, Delta Junction begins transitioning from summer highs into the cooler autumn temperatures. The temperature range starts to drop, with the highs averaging at around 64.4°F (18°C). A notable characteristic of August is its record rainfall amount of 1.57" (40mm), making it the wettest month of the year. Despite the ongoing rainfall, the overall weather remains amicable. As the month advances, the gradual decrease in daylight hours signals the approaching end of summer.Temperature
A subtle change in temperatures is noted as July gives way to August, with average highs reducing from an agreeable 69.8°F (21°C) to an enjoyable 64.4°F (18°C). Delta Junction throughout August, records an average low-temperature of 46.2°F (7.9°C).Humidity
In Delta Junction, the average relative humidity in August is 64%.Rainfall
The month with the most rainfall is August, when the rain falls for 12.3 days and typically aggregates up to 1.57" (40mm) of precipitation.Snowfall
Months with snowfall in Delta Junction are January through May, August through December. August is the first month it typically snows. Throughout August, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Delta Junction, during the entire year, snow falls for 56.2 days and aggregates up to 18.66" (474mm) of snow.Daylight
In Delta Junction, the average length of the day in August is 16h and 15min.On the first day of the month, sunrise is at 4:54 am and sunset at 10:44 pm. On the last day of August, sunrise is at 6:25 am and sunset at 9:00 pm AKDT.
Sunshine
In Delta Junction, the average sunshine in August is 10.3h.UV index
The average daily maximum UV index in August is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 in August translates into this advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Delta Junction, AK
- Average high temperature in August: 64.4°F
The warmest month (with the highest average high temperature) is July (69.8°F).
The month with the lowest average high temperature is January (5.4°F).
- Average low temperature in August: 46.2°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (-5.8°F).
Average pressure in August
Delta Junction, AK
- Average pressure in August: 29.84"Hg
The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed in August
Delta Junction, AK
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in August
Delta Junction, AK
- Average humidity in August: 64%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (51%).
Average rainfall in August
Delta Junction, AK
- Average rainfall in August: 1.57"
The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is February (0.24").
Average rainfall days in August
Delta Junction, AK
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is August (12.3 days).
The month with the least rainy days is November (1.7 days).
Average snowfall in August
Delta Junction, AK
- Average snowfall in August: 0.12"
The months with the highest snowfall are March and October (2.99").
The months with the least snowfall are June and July (0").
Average snowfall days in August
Delta Junction, AK
- Average snowfall days in August: 0.2 days
The month with the highest number of snowfall days is November (9.6 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in August /
Average sunshine in August
Delta Junction, AK
- Average daylight in August: 16h and 18min
The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is June (Average sunshine: 13h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in August
Delta Junction, AK
- Average sunshine days in August: 17.4 days
The months with the most sunshine days are January and December (23.5 days).
The month with the least sunshine days is August (17.4 days).
Average UV index in August
Delta Junction, AK
- Average UV index in August: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, September, October, November and December (UV index 2).
Average cloud cover in August
Delta Junction, AK
- Average cloud cover in August: 43
The months with the most cloud cover are March and November (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in August
Delta Junction, AK
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).





