August weather forecastBirchwood, AK
August
Weather in August
The last month of the summer, August, is another mild month in Birchwood, Alaska, with an average temperature varying between 46.4°F (8°C) and 60.3°F (15.7°C).Temperature
The arrival of August coincides with an average high-temperature of a mild 60.3°F (15.7°C), indicating a minimal shift from July's 63.1°F (17.3°C). Throughout the month of August, Birchwood witnesses an average low-temperature of 46.4°F (8°C).Humidity
In Birchwood, the average relative humidity in August is 76%.Rainfall
In Birchwood, Alaska, in August, it is raining for 18.3 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 147 rainfall days, and 13.27" (337mm) of precipitation is accumulated.Snowfall
In Birchwood, snow does not fall in June through August.Daylight
In August, the average length of the day is 15h and 44min.On the first day of the month, sunrise is at 5:32 am and sunset at 10:36 pm. On the last day of August, sunrise is at 6:49 am and sunset at 9:06 pm AKDT.
Sunshine
In Birchwood, the average sunshine in August is 10.2h.UV index
In August, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 3 during August morphs into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Birchwood, AK
- Average high temperature in August: 60.3°F
The warmest month (with the highest average high temperature) is July (63.1°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in August: 46.4°F
The month with the highest average low temperature is July (48.4°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in August
Birchwood, AK
- Average pressure in August: 29.86"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.69"Hg).
Average wind speed in August
Birchwood, AK
- Average wind speed in August: 4.2mph
The windiest months (with the highest average wind speed) are January and December (4.6mph).
The calmest month (with the lowest average wind speed) is July (4.1mph).
Average humidity in August
Birchwood, AK
- Average humidity in August: 76%
The months with the highest relative humidity are February and March (87%).
The month with the lowest relative humidity is May (65%).
Average rainfall in August
Birchwood, AK
- Average rainfall in August: 1.73"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is May (0.63").
Average rainfall days in August
Birchwood, AK
- Average rainfall days in August: 18.3 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in August
Birchwood, AK
- Average snowfall in August: 0"
The month with the highest snowfall is December (5.98").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Birchwood, AK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Birchwood, AK
- Average daylight in August: 15h and 42min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is May (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in August
Birchwood, AK
- Average sunshine days in August: 10.2 days
The month with the most sunshine days is January (17.2 days).
The month with the least sunshine days is August (10.2 days).
Average UV index in August
Birchwood, AK
- Average UV index in August: 3
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in August
Birchwood, AK
- Average cloud cover in August: 44
The months with the most cloud cover are April, August and December (Cloud cover 44).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in August
Birchwood, AK
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is March (4mi).
