Weather in September
The first month of the autumn, September, is also a wintry month in Barter Island, Alaska, with an average temperature varying between 27.9°F (-2.3°C) and 35.4°F (1.9°C).
On the first day of the month, sunrise is at 5:53 am and sunset at 9:14 pm. On the last day of September, sunrise is at 7:50 am and sunset at 6:58 pm AKDT.
Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from a chilly 43.9°F (6.6°C) in August to a wintry 35.4°F (1.9°C). Barter Island experiences an average nighttime temperature of 27.9°F (-2.3°C) in September, reflecting a minor difference from the day's peak.Rainfall
During September, Barter Island regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, 6.22" (158mm) of rain is accumulated.Snowfall
Months with snowfall are January through December. During September, Barter Island regularly aggregates up to 4.88" (124mm) of snow. Throughout the year, 41.81" (1062mm) of snow is accumulated.Daylight
In Barter Island, the average length of the day in September is 13h and 18min.On the first day of the month, sunrise is at 5:53 am and sunset at 9:14 pm. On the last day of September, sunrise is at 7:50 am and sunset at 6:58 pm AKDT.
Updated: Jun 3, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is September?
Barter Island in September has an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 27.9°F (-2.3°C).
How much does it rain in September?
Throughout September, 0.67" (17mm) of precipitation is accumulated.
How much does it snow in September?
During September, Barter Island regularly aggregates up to 4.88" (124mm) of snow.
How many hours of daylight does Barter Island have in September?
The average day length in September is 13h and 18min.
When is the sunrise / sunset in September in Barter Island?
In September, on the first day of the month, sunrise is at 5:53 am and sunset at 9:14 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 6:58 pm AKDT.
Average temperature in September
Barter Island, AK
- Average high temperature in September: 35.4°F
The warmest month (with the highest average high temperature) is July (45.3°F).
The month with the lowest average high temperature is February (-13.9°F).
- Average low temperature in September: 27.9°F
The month with the highest average low temperature is July (34.9°F).
The coldest month (with the lowest average low temperature) is February (-26.3°F).
Average rainfall in September
Barter Island, AK
- Average rainfall in September: 0.7"
The wettest month (with the highest rainfall) is August (1.1").
The driest months (with the least rainfall) are February, March and April (0.2").
Average snowfall in September
Barter Island, AK
- Average snowfall in September: 4.9"
The month with the highest snowfall is October (9.2").
The month with the least snowfall is July (0.5").
Average daylight in September
Barter Island, AK
- Average daylight in September: 13h and 2min
The month with the longest days is August (Average daylight: 18h and 12min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
Barter Island, Alaska, USA
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