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
With September's onset, the weather shows a temperature decrease, transitioning from a refreshing 59.5°F (15.3°C) in August to a fresh 50.4°F (10.2°C). In Sleetmute, the nighttime temperature averages to a cold 37.6°F (3.1°C) during September.Humidity
In Sleetmute, the average relative humidity in September is 82%.Rainfall
In Sleetmute, in September, during 17.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Sleetmute, during the entire year, the rain falls for 135.6 days and collects up to 19.72" (501mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Sleetmute. Throughout September, in the average 1.1 snowfall days, it receives 0.2" (5mm) of snow. In Sleetmute, during the entire year, snow falls for 104.6 days and aggregates up to 50.39" (1280mm) of snow.Daylight
In Sleetmute, Alaska, the average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 7:21 am and sunset at 9:35 pm. On the last day of September, in Sleetmute, sunrise is at 8:35 am and sunset at 8:01 pm AKDT.
Sunshine
In September, the average sunshine is 5h.UV index
In Sleetmute, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. During bright days, sunglasses that offer UVA and UVB defense are recommended. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What is the usual temperature for Sleetmute in September?
What is the average humidity in September in Sleetmute?
How many days does it rain in September in Sleetmute?
When does it start to snow in Sleetmute?
How many hours of daylight does Sleetmute have in September?
What time are sunrise and sunset in September in Sleetmute?
How many hours of sunshine does Sleetmute have in September?
What is the UV index reading in September in Sleetmute?
Average temperature in September
Sleetmute, AK
- Average high temperature in September: 50.4°F
The warmest month (with the highest average high temperature) is July (64.4°F).
The month with the lowest average high temperature is January (6.4°F).
- Average low temperature in September: 37.6°F
The month with the highest average low temperature is July (48°F).
The coldest month (with the lowest average low temperature) is January (-3.6°F).
Average pressure in September
Sleetmute, AK
- Average pressure in September: 29.74"Hg
The month with the highest atmospheric pressure is July (29.93"Hg).
The month with the lowest atmospheric pressure is October (29.7"Hg).
Average wind speed in September
Sleetmute, AK
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is October (6.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
Sleetmute, AK
- Average humidity in September: 82%
The months with the highest relative humidity are February, March and December (94%).
The month with the lowest relative humidity is June (65%).
Average rainfall in September
Sleetmute, AK
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Sleetmute, AK
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is August (19.9 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Sleetmute, AK
- Average snowfall in September: 0.2"
The month with the highest snowfall is December (9.92").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Sleetmute, AK
- Average snowfall days in September: 1.1 days
The month with the highest number of snowfall days is March (18 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sleetmute, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in September: 5h and 0min
The month with the most sunshine is May (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Sleetmute, AK
- Average sunshine days in September: 10 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is April (8.4 days).
Average UV index in September
Sleetmute, AK
- Average UV index in September: 2
The months with the highest UV index are May and July (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in September
Sleetmute, AK
- Average cloud cover in September: 60
The month with the most cloud cover is April (Cloud cover 69).
The month with the least cloud cover is June (Cloud cover 50).
Average visibility in September
Sleetmute, AK
- Average visibility in September: 5mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Sleetmute, Alaska, USA
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