September weather forecast
Anderson, AK

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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.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Anderson, in September, the average high-temperature is 53.8°F (12.1°C), and the average low-temperature is 37.4°F (3°C).

What is the average humidity in September?

In Anderson, the average relative humidity in September is 75%.

How many days does it rain in September?

In Anderson, in September, during 10.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 1.4 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Anderson have in September?

In September, the average day length is 12h and 59min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 7:27 pm AKDT.

How long on average sun shines in September?

In Anderson, the average sunshine duration in September is 6.9h.

How high is the UV index in September?

In Anderson, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Anderson, AK

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 5min

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 - 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 - 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 - 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 - 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).

Anderson, Alaska, USA

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