September weather forecastChevak, AK
September
Weather in September
The first month of the autumn, September, is still a chilly month in Chevak, Alaska, with an average temperature fluctuating between 45.1°F (7.3°C) and 49.5°F (9.7°C).Temperature
At the start of September, Chevak's average high-temperature reaches a frosty 49.5°F (9.7°C), subtly different from the preceding month. Chevak reports an average low temperature of 45.1°F (7.3°C) in September, a minor decrease from the day's highs.Humidity
The average relative humidity in September is 80%.Rainfall
September is the month with the most rainfall. Rain falls for 20.1 days and accumulates 2.87" (73mm) of precipitation.Snowfall
Months with snowfall in Chevak, Alaska, are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.04" (1mm) of snow. In Chevak, during the entire year, snow falls for 86.8 days and aggregates up to 19.57" (497mm) of snow.Daylight
In September, the average length of the day is 12h and 52min.On the first day of September, sunrise is at 7:55 am and sunset at 10:08 pm. On the last day of the month, sunrise is at 9:09 am and sunset at 8:34 pm AKDT.
Sunshine
The average sunshine in September is 3.8h.UV index
In Chevak, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 2 in September translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chevak, AK
- Average high temperature in September: 49.5°F
The warmest month (with the highest average high temperature) is August (53.2°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 45.1°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in September
Chevak, AK
- Average pressure in September: 29.74"Hg
The months with the highest atmospheric pressure are May and July (29.91"Hg).
The month with the lowest atmospheric pressure is December (29.63"Hg).
Average wind speed in September
Chevak, AK
- Average wind speed in September: 15.8mph
The windiest months (with the highest average wind speed) are October and November (18mph).
The calmest month (with the lowest average wind speed) is May (11.7mph).
Average humidity in September
Chevak, AK
- Average humidity in September: 80%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (78%).
Average rainfall in September
Chevak, AK
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is September (2.87").
The driest month (with the least rainfall) is April (0.94").
Average rainfall days in September
Chevak, AK
- Average rainfall days in September: 20.1 days
The month with the highest number of rainy days is September (20.1 days).
The month with the least rainy days is March (3.7 days).
Average snowfall in September
Chevak, AK
- Average snowfall in September: 0.04"
The months with the highest snowfall are February and December (3.98").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Chevak, AK
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (15 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Chevak, AK
- Average daylight in September: 12h and 54min
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 30min).
- Average sunshine in September: 3h and 48min
The month with the most sunshine is May (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in September
Chevak, AK
- Average sunshine days in September: 6.5 days
The month with the most sunshine days is May (16.1 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in September
Chevak, AK
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Chevak, AK
- Average cloud cover in September: 73
The month with the most cloud cover is September (Cloud cover 73).
The months with the least cloud cover are May and June (Cloud cover 58).
Average visibility in September
Chevak, AK
- Average visibility in September: 6mi
The months with the highest visibility are March, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, April, November and December (5mi).
