Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset introduces a mild reduction in the average high-temperature, from a refreshing 57.6°F (14.2°C) in August to a cool 50.4°F (10.2°C). Alakanuk's nighttime temperatures in September display a slight drop from daytime highs, averaging to a wintry 42.6°F (5.9°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Alakanuk, during September, the rain falls for 15.9 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Alakanuk, during the entire year, the rain falls for 113.9 days and collects up to 13.46" (342mm) 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 1.2 snowfall days, it receives 0.16" (4mm) of snow. In Alakanuk, Alaska, during the entire year, snow falls for 88.6 days and aggregates up to 19.76" (502mm) of snow.Daylight
The average length of the day in September is 12h and 55min.On the first day of September, sunrise is at 7:48 am and sunset at 10:07 pm. On the last day of the month, sunrise is at 9:06 am and sunset at 8:30 pm AKDT.
Sunshine
In September, the average sunshine is 4.3h.UV index
The average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in September transforms into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alakanuk in September?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Alakanuk have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Alakanuk, AK
- Average high temperature in September: 50.4°F
The warmest month (with the highest average high temperature) is July (59°F).
The month with the lowest average high temperature is January (13.1°F).
- Average low temperature in September: 42.6°F
The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).
Average pressure in September
Alakanuk, AK
- Average pressure in September: 29.73"Hg
The month with the highest atmospheric pressure is May (29.92"Hg).
The month with the lowest atmospheric pressure is October (29.67"Hg).
Average wind speed in September
Alakanuk, AK
- Average wind speed in September: 11.9mph
The windiest month (with the highest average wind speed) is February (13.3mph).
The calmest month (with the lowest average wind speed) is May (10.1mph).
Average humidity in September
Alakanuk, AK
- Average humidity in September: 80%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Alakanuk, AK
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is March (0.75").
Average rainfall days in September
Alakanuk, AK
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in September
Alakanuk, AK
- Average snowfall in September: 0.16"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Alakanuk, AK
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Alakanuk, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).
- Average sunshine in September: 4h and 2min
The month with the most sunshine is May (Average sunshine: 7h and 48min).
The months with the least sunshine are January and December (Average sunshine: 2h and 18min).
Average sunshine days in September
Alakanuk, AK
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is January (15.8 days).
The month with the least sunshine days is September (9.9 days).
Average UV index in September
Alakanuk, AK
- Average UV index in September: 2
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Alakanuk, AK
- Average cloud cover in September: 67
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is June (Cloud cover 53).
Average visibility in September
Alakanuk, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Alakanuk, Alaska, USA
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