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
Cooper Landing experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a cool 55°F (12.8°C) in August to a frosty 47.3°F (8.5°C). The mean low-temperature during September nights in Cooper Landing, Alaska, is an icy 36.7°F (2.6°C).Humidity
In September, the average relative humidity in Cooper Landing is 86%.Rainfall
In Cooper Landing, during September, the rain falls for 20.9 days and regularly aggregates up to 4.76" (121mm) of precipitation. Throughout the year, in Cooper Landing, there are 182.8 rainfall days, and 46.1" (1171mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Cooper Landing, Alaska. Throughout September, in the average 0.3 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, in Cooper Landing, there are 116.2 snowfall days, and 116.38" (2956mm) of snow is accumulated.Daylight
In September, the average length of the day in Cooper Landing is 12h and 50min.On the first day of the month, sunrise is at 6:55 am and sunset at 9:02 pm. On the last day of September, sunrise is at 8:05 am and sunset at 7:32 pm AKDT.
Sunshine
In September, the average sunshine in Cooper Landing is 5.8h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, an average UV index of 2 transforms into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are the temperatures in Cooper Landing in September?
What is the average humidity in September in Cooper Landing?
How many days does it rain in September in Cooper Landing?
When does it start snowing in Cooper Landing?
What is the average length of the day in September in Cooper Landing?
When are sunrise and sunset in September in Cooper Landing?
How many hours of sunshine does Cooper Landing have in September?
How high is the UV index in September in Cooper Landing?
Average temperature in September
Cooper Landing, AK
- Average high temperature in September: 47.3°F
The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in September: 36.7°F
The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Cooper Landing, AK
- Average pressure in September: 29.74"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is November (29.62"Hg).
Average wind speed in September
Cooper Landing, AK
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is November (6mph).
The calmest month (with the lowest average wind speed) is June (4.4mph).
Average humidity in September
Cooper Landing, AK
- Average humidity in September: 86%
The months with the highest relative humidity are March and December (92%).
The month with the lowest relative humidity is June (78%).
Average rainfall in September
Cooper Landing, AK
- Average rainfall in September: 4.76"
The wettest month (with the highest rainfall) is December (6.02").
The driest month (with the least rainfall) is June (2.2").
Average rainfall days in September
Cooper Landing, AK
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Cooper Landing, AK
- Average snowfall in September: 0.28"
The month with the highest snowfall is December (24.06").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Cooper Landing, AK
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (20.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cooper Landing, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 5h and 5min
The months with the most sunshine are May and July (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in September
Cooper Landing, AK
- Average sunshine days in September: 7 days
The month with the most sunshine days is January (9.9 days).
The month with the least sunshine days is September (7 days).
Average UV index in September
Cooper Landing, AK
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Cooper Landing, AK
- Average cloud cover in September: 59
The month with the most cloud cover is April (Cloud cover 62).
The month with the least cloud cover is May (Cloud cover 54).
Average visibility in September
Cooper Landing, AK
- Average visibility in September: 5mi
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Cooper Landing, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location
