September weather forecastEster, AK
September
Weather in September
The first month of the autumn, September, is also a fresh month in Ester, Alaska, with an average temperature fluctuating between 52.7°F (11.5°C) and 36.5°F (2.5°C).Temperature
As Ester enters September, the average high-temperature decreases from the an enjoyable 64.2°F (17.9°C) of August to a cool 52.7°F (11.5°C). During the month of September, the temperature generally drops to a low average of 36.5°F (2.5°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Ester, in September, during 11.9 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 98.7 rainfall days, and 10.75" (273mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 1.7 snowfall days, it receives 0.87" (22mm) of snow. In Ester, during the entire year, snow falls for 78.4 days and aggregates up to 25" (635mm) of snow.Daylight
In Ester, the average length of the day in September is 13h and 0min.On the first day of September, sunrise is at 6:34 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 7:21 pm AKDT.
Sunshine
In September, the average sunshine is 7.3h.UV index
In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 2 in September, converts into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ester, AK
- Average high temperature in September: 52.7°F
The warmest month (with the highest average high temperature) is July (71.6°F).
The month with the lowest average high temperature is January (1.8°F).
- Average low temperature in September: 36.5°F
The month with the highest average low temperature is July (50.7°F).
The coldest month (with the lowest average low temperature) is January (-9°F).
Average pressure in September
Ester, AK
- Average pressure in September: 29.77"Hg
The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed in September
Ester, AK
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is May (4.8mph).
The calmest months (with the lowest average wind speed) are January, August, October, November and December (4.2mph).
Average humidity in September
Ester, AK
- Average humidity in September: 75%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is June (56%).
Average rainfall in September
Ester, AK
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Ester, AK
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is August (16.5 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in September
Ester, AK
- Average snowfall in September: 0.87"
The month with the highest snowfall is November (5.91").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Ester, AK
- Average snowfall days in September: 1.7 days
The month with the highest number of snowfall days is November (13.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ester, AK
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 21h and 30min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Ester, AK
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in September
Ester, 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, November and December (UV index 1).
Average cloud cover in September
Ester, AK
- Average cloud cover in September: 48
The months with the most cloud cover are March and April (Cloud cover 55).
The months with the least cloud cover are May and June (Cloud cover 40).
Average visibility in September
Ester, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is March (3mi).
