Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September corresponds with a shift in temperature, down from a refreshing 61.2°F (16.2°C) in August to a cool 52°F (11.1°C). September witnesses an average nighttime temperature of 39.6°F (4.2°C).Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 12.1 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In Russian Mission, during the entire year, the rain falls for 108.2 days and collects up to 11.1" (282mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 86.5 snowfall days, and 23.43" (595mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 53min.On the first day of September, sunrise is at 7:38 am and sunset at 9:51 pm. On the last day of the month, sunrise is at 8:52 am and sunset at 8:17 pm AKDT.
Sunshine
In Russian Mission, Alaska, the average sunshine in September is 5.4h.UV index
The average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 2 in September translates into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Russian Mission in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Russian Mission have in September?
What is the UV index intensity in September?
Average temperature in September
Russian Mission, AK
- Average high temperature in September: 52°F
The warmest month (with the highest average high temperature) is July (64.8°F).
The month with the lowest average high temperature is January (9.3°F).
- Average low temperature in September: 39.6°F
The month with the highest average low temperature is July (49.3°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average pressure in September
Russian Mission, AK
- Average pressure in September: 29.73"Hg
The month with the highest atmospheric pressure is July (29.93"Hg).
The month with the lowest atmospheric pressure is October (29.68"Hg).
Average wind speed in September
Russian Mission, AK
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Russian Mission, AK
- Average humidity in September: 80%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is June (62%).
Average rainfall in September
Russian Mission, AK
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is August (1.57").
The driest months (with the least rainfall) are January and May (0.63").
Average rainfall days in September
Russian Mission, AK
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is March (4.4 days).
Average snowfall in September
Russian Mission, AK
- Average snowfall in September: 0.12"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Russian Mission, AK
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (16.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Russian Mission, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 5h and 24min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in September
Russian Mission, AK
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is August (11.8 days).
Average UV index in September
Russian Mission, AK
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in September
Russian Mission, AK
- Average cloud cover in September: 58
The month with the most cloud cover is March (Cloud cover 63).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in September
Russian Mission, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are March and April (4mi).
Russian Mission, Alaska, USA
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