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, Chefornak's weather conditions record an average high-temperature of a chilly 49.3°F (9.6°C), demonstrating little divergence from the preceding month. September registers an average low temperature of 46.2°F (7.9°C) in Chefornak, subtly lower than the daytime maximum.Humidity
In Chefornak, Alaska, the average relative humidity in September is 83%.Rainfall
September is the month with the most rainfall in Chefornak. Rain falls for 21.1 days and accumulates 2.83" (72mm) of precipitation.Snowfall
In Chefornak, snow does not fall in July through September.Daylight
In Chefornak, the average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 7:54 am and sunset at 9:59 pm. On the last day of September, in Chefornak, sunrise is at 9:02 am and sunset at 8:30 pm AKDT.
Sunshine
In Chefornak, the average sunshine in September is 3.6h.UV index
In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in September translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the temperature in September in Chefornak?
What is the average humidity in September in Chefornak?
What is the wettest month in Chefornak?
How many days does it rain in September in Chefornak?
When it does not snow in Chefornak?
Does it snow in Chefornak in September?
What is the average length of the day in September in Chefornak?
When is the sunrise / sunset in September in Chefornak?
How long on average sun shines in September in Chefornak?
What is the UV index reading in September in Chefornak?
Average temperature in September
Chefornak, AK
- Average high temperature in September: 49.3°F
The warmest month (with the highest average high temperature) is August (53.2°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in September: 46.2°F
The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Chefornak, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.92"Hg).
The month with the lowest atmospheric pressure is December (29.6"Hg).
Average wind speed in September
Chefornak, AK
- Average wind speed in September: 16.4mph
The windiest month (with the highest average wind speed) is November (19.3mph).
The calmest month (with the lowest average wind speed) is July (11.7mph).
Average humidity in September
Chefornak, AK
- Average humidity in September: 83%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (79%).
Average rainfall in September
Chefornak, AK
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is September (2.83").
The driest month (with the least rainfall) is June (0.87").
Average rainfall days in September
Chefornak, AK
- Average rainfall days in September: 21.1 days
The month with the highest number of rainy days is September (21.1 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Chefornak, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.78").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Chefornak, AK
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Chefornak, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 3h and 4min
The month with the most sunshine is May (Average sunshine: 7h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Chefornak, AK
- Average sunshine days in September: 4.7 days
The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is September (4.7 days).
Average UV index in September
Chefornak, AK
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, April, November and December (UV index 1).
Average cloud cover in September
Chefornak, AK
- Average cloud cover in September: 74
The months with the most cloud cover are September and December (Cloud cover 74).
The month with the least cloud cover is May (Cloud cover 59).
Average visibility in September
Chefornak, 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).
Chefornak, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location
