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 brings a decrease in the average high-temperature, falling from August's mild 59.5°F (15.3°C) to a fresh 50.4°F (10.2°C). Crooked Creek's average low-temperature in the month of September is recorded at a wintry 37.6°F (3.1°C).Humidity
In Crooked Creek, the average relative humidity in September is 82%.Rainfall
In September, the rain falls for 17.6 days. Throughout September, 2.4" (61mm) of precipitation is accumulated. In Crooked Creek, 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. Throughout September, in the average 1.1 snowfall days, it receives 0.2" (5mm) of snow. In Crooked Creek, Alaska, during the entire year, snow falls for 104.6 days and aggregates up to 50.39" (1280mm) of snow.Daylight
In Crooked Creek, Alaska, the average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 7:24 am and sunset at 9:39 pm. On the last day of September, sunrise is at 8:39 am and sunset at 8:04 pm AKDT.
Sunshine
In September, the average sunshine is 5h.UV index
In September, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during September translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
What is the average length of the day in September?
When are sunrise and sunset in September in Crooked Creek?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 5h and 24min).
- 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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
Crooked Creek, 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).
Crooked Creek, Alaska, USA
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