August weather forecastPort Chilkoot, AK
August
Weather in August
The last month of the summer, August, is another cool month in Port Chilkoot, Alaska, with an average temperature ranging between max 55°F (12.8°C) and min 44.1°F (6.7°C).Temperature
Stepping into August, Port Chilkoot records an average high-temperature of a cool 55°F (12.8°C), almost consistent with July. Nighttime temperature lowers to an average of 44.1°F (6.7°C) in August.Humidity
In August, the average relative humidity is 84%.Rainfall
In Port Chilkoot, in August, during 19.6 rainfall days, 4.13" (105mm) of precipitation is typically accumulated. In Port Chilkoot, during the entire year, the rain falls for 200.4 days and collects up to 48.03" (1220mm) of precipitation.Snowfall
In Port Chilkoot, snow does not fall in June through September.Daylight
In Port Chilkoot, the average length of the day in August is 15h and 25min.On the first day of the month, sunrise is at 4:49 am and sunset at 9:26 pm. On the last day of August, sunrise is at 5:58 am and sunset at 8:04 pm AKDT.
Sunshine
In August, the average sunshine is 7h.UV index
In August, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In August, a regular UV index of 3 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Port Chilkoot, AK
- Average high temperature in August: 55°F
The warmest month (with the highest average high temperature) is July (56.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in August: 44.1°F
The month with the highest average low temperature is August (44.1°F).
The coldest month (with the lowest average low temperature) is February (12.4°F).
Average pressure in August
Port Chilkoot, AK
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is July (30.01"Hg).
The month with the lowest atmospheric pressure is November (29.81"Hg).
Average wind speed in August
Port Chilkoot, AK
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is May (4.7mph).
Average humidity in August
Port Chilkoot, AK
- Average humidity in August: 84%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in August
Port Chilkoot, AK
- Average rainfall in August: 4.13"
The wettest month (with the highest rainfall) is November (5.87").
The driest month (with the least rainfall) is June (2.2").
Average rainfall days in August
Port Chilkoot, AK
- Average rainfall days in August: 19.6 days
The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in August
Port Chilkoot, AK
- Average snowfall in August: 0"
The month with the highest snowfall is December (21.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Port Chilkoot, AK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Port Chilkoot, AK
- Average daylight in August: 15h and 24min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in August: 7h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in August
Port Chilkoot, AK
- Average sunshine days in August: 8.8 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in August
Port Chilkoot, AK
- Average UV index in August: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in August
Port Chilkoot, AK
- Average cloud cover in August: 61
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in August
Port Chilkoot, AK
- Average visibility in August: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
