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
In September, the average high-temperature marginally drops from a refreshing 59°F (15°C) in August to a cool 51.1°F (10.6°C). During September nights, Mountain Village records an average temperature of 40.1°F (4.5°C).Humidity
In Mountain Village, the average relative humidity in September is 81%.Rainfall
In Mountain Village, in September, during 14.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 104.5 rainfall days, and 15.75" (400mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 71.4 snowfall days, and 22.72" (577mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 53min.On the first day of the month, sunrise is at 7:46 am and sunset at 10:02 pm. On the last day of September, sunrise is at 9:02 am and sunset at 8:27 pm AKDT.
Sunshine
The average sunshine in September is 4.5h.UV index
The average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, a daily UV index of 2 turns into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Mountain Village have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Mountain Village have in September?
What is the UV index reading in September?
Average temperature in September
Mountain Village, AK
- Average high temperature in September: 51.1°F
The warmest month (with the highest average high temperature) is July (61.5°F).
The month with the lowest average high temperature is January (11.3°F).
- Average low temperature in September: 40.1°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (2.3°F).
Average pressure in September
Mountain Village, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.91"Hg).
The months with the lowest atmospheric pressure are October and December (29.67"Hg).
Average wind speed in September
Mountain Village, AK
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is February (11.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in September
Mountain Village, AK
- Average humidity in September: 81%
The months with the highest relative humidity are January, February, March and December (91%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Mountain Village, AK
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is August (2.13").
The driest months (with the least rainfall) are January and June (0.87").
Average rainfall days in September
Mountain Village, AK
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is August (17.8 days).
The months with the least rainy days are January and February (2.4 days).
Average snowfall in September
Mountain Village, AK
- Average snowfall in September: 0.12"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Mountain Village, AK
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is February (11.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Mountain Village, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in September: 4h and 3min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in September
Mountain Village, AK
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (10.9 days).
Average UV index in September
Mountain Village, 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 March, November and December (UV index 1).
Average cloud cover in September
Mountain Village, AK
- Average cloud cover in September: 64
The month with the most cloud cover is July (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 54).
Average visibility in September
Mountain Village, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).
Mountain Village, Alaska, USA
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