September weather forecastTalkeetna, AK
September
Weather in September
Autumn announces its arrival in Talkeetna in September as temperatures begin to drop from their summer highs. This month holds a unique position where the remnants of summer blend seamlessly with the initial chill of incoming winter. As we move through the weeks, the days start becoming shorter and there's an uptick in cloud cover, subtly hinting at the closing of the summer chapter. With rainfall at its second-highest of the year at 2.68" (68mm), the weather tends to be more erratic, an essential feature of the fall season. All in all, September stays true to its reputation as the doorway between summer and winter.Temperature
September brings a minor shift in the average high-temperature, adjusting from a refreshing 61.3°F (16.3°C) in August to a fresh 52.7°F (11.5°C). Talkeetna, in September, observes a steady average low-temperature of 39.4°F (4.1°C).Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the most rainfall. Rain falls for 17 days and accumulates 2.68" (68mm) 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 0.4 snowfall days, it receives 0.31" (8mm) of snow. Throughout the year, there are 60.9 snowfall days, and 36.89" (937mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 54min.On the first day of the month, sunrise is at 6:51 am and sunset at 9:08 pm. On the last day of September, in Talkeetna, sunrise is at 8:07 am and sunset at 7:32 pm AKDT.
Sunshine
In September, the average sunshine is 7.5h.UV index
The average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in September suggests the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Talkeetna, AK
- Average high temperature in September: 52.7°F
The warmest month (with the highest average high temperature) is July (65.5°F).
The month with the lowest average high temperature is January (16.9°F).
- Average low temperature in September: 39.4°F
The month with the highest average low temperature is July (48.4°F).
The coldest month (with the lowest average low temperature) is January (8.8°F).
Average pressure in September
Talkeetna, AK
- Average pressure in September: 29.75"Hg
The month with the highest atmospheric pressure is July (29.94"Hg).
The month with the lowest atmospheric pressure is December (29.72"Hg).
Average wind speed in September
Talkeetna, AK
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).
Average humidity in September
Talkeetna, AK
- Average humidity in September: 76%
The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is May (64%).
Average rainfall in September
Talkeetna, AK
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is September (2.68").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Talkeetna, AK
- Average rainfall days in September: 17 days
The month with the highest number of rainy days is August (20.4 days).
The month with the least rainy days is December (4.8 days).
Average snowfall in September
Talkeetna, AK
- Average snowfall in September: 0.31"
The month with the highest snowfall is November (7.87").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Talkeetna, AK
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Talkeetna, AK
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 42min).
The month with the shortest days is December (Average daylight: 5h and 12min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is May (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Talkeetna, AK
- Average sunshine days in September: 11.2 days
The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in September
Talkeetna, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Talkeetna, AK
- Average cloud cover in September: 45
The month with the most cloud cover is August (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 38).
Average visibility in September
Talkeetna, AK
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is April (5mi).
