September weather forecastAnderson, AK
September
Weather in September
September, the first month of the autumn in Anderson, is still a cool month, with an average temperature ranging between max 53.8°F (12.1°C) and min 37.4°F (3°C).Temperature
Anderson in September experiences a subtle temperature decline, with average high-temperatures reducing from a refreshing 65.7°F (18.7°C) in August to a fresh 53.8°F (12.1°C). Throughout September, the average low-temperature dips to a wintry 37.4°F (3°C).Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. In Anderson, during the entire year, the rain falls for 82.9 days and collects up to 10.75" (273mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 1.4 snowfall days, it receives 0.51" (13mm) of snow. In Anderson, during the entire year, snow falls for 80.5 days and aggregates up to 24.09" (612mm) of snow.Daylight
In Anderson, the average length of the day in September is 12h and 59min.On the first day of the month, sunrise is at 6:41 am and sunset at 9:11 pm. On the last day of September, sunrise is at 8:05 am and sunset at 7:27 pm AKDT.
Sunshine
The average sunshine in September in Anderson is 6.9h.UV index
In September, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during September, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Anderson, AK
- Average high temperature in September: 53.8°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is January (1.4°F).
- Average low temperature in September: 37.4°F
The month with the highest average low temperature is July (52°F).
The coldest month (with the lowest average low temperature) is January (-10.8°F).
Average pressure in September
Anderson, AK
- Average pressure in September: 29.77"Hg
The month with the highest atmospheric pressure is February (29.96"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed in September
Anderson, AK
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is July (5.2mph).
The calmest months (with the lowest average wind speed) are January, August, September and October (4.7mph).
Average humidity in September
Anderson, AK
- Average humidity in September: 75%
The months with the highest relative humidity are January, February, March and December (95%).
The month with the lowest relative humidity is June (54%).
Average rainfall in September
Anderson, AK
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
Anderson, AK
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is August (14.9 days).
The month with the least rainy days is February (0.8 days).
Average snowfall in September
Anderson, AK
- Average snowfall in September: 0.51"
The month with the highest snowfall is November (6.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Anderson, AK
- Average snowfall days in September: 1.4 days
The month with the highest number of snowfall days is March (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Anderson, AK
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 21h and 0min).
The month with the shortest days is December (Average daylight: 4h and 18min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Anderson, AK
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in September
Anderson, AK
- Average UV index in September: 2
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, October, November and December (UV index 1).
Average cloud cover in September
Anderson, AK
- Average cloud cover in September: 50
The month with the most cloud cover is March (Cloud cover 67).
The months with the least cloud cover are May and June (Cloud cover 42).
Average visibility in September
Anderson, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are February and March (2mi).





