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 ushers in a minute temperature change, with average high-temperatures reducing from August's refreshing 61°F (16.1°C) to a fresh 53.4°F (11.9°C). During the month of September, an average low-temperature of 43.9°F (6.6°C) is recorded.Humidity
In September, the average relative humidity is 81%.Rainfall
September is the month with the most rainfall. Rain falls for 18.7 days and accumulates 3.03" (77mm) 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 0.3 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, there are 72.3 snowfall days, and 34.65" (880mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 50min.On the first day of September, sunrise is at 7:01 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 7:38 pm AKDT.
Sunshine
In September, the average sunshine in Cohoe is 6.4h.UV index
In September, the average daily maximum UV index in Cohoe is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in September leads to these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the rainiest month in Cohoe?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September in Cohoe?
When are sunrise and sunset in September?
How many hours of sunshine does Cohoe have in September?
How high is the UV index in September?
Average temperature in September
Cohoe, AK
- Average high temperature in September: 53.4°F
The warmest month (with the highest average high temperature) is July (63°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in September: 43.9°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Cohoe, AK
- Average pressure in September: 29.73"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.63"Hg).
Average wind speed in September
Cohoe, AK
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is December (7.7mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in September
Cohoe, AK
- Average humidity in September: 81%
The months with the highest relative humidity are January, February and March (89%).
The month with the lowest relative humidity is May (68%).
Average rainfall in September
Cohoe, AK
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is September (3.03").
The driest months (with the least rainfall) are March, May and June (1.1").
Average rainfall days in September
Cohoe, AK
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is September (18.7 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Cohoe, AK
- Average snowfall in September: 0.28"
The month with the highest snowfall is December (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Cohoe, AK
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cohoe, 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: 6h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Cohoe, AK
- Average sunshine days in September: 10 days
The month with the most sunshine days is July (14.3 days).
The month with the least sunshine days is September (10 days).
Average UV index in September
Cohoe, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in September
Cohoe, AK
- Average cloud cover in September: 50
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in September
Cohoe, 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).
Cohoe, Alaska, USA
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