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's beginning signals an average high-temperature of a cool 52.3°F (11.3°C), barely different from August's 56.8°F (13.8°C). Recording a slight drop from the daily maximum, Chignik Lake notes an average low temperature of 45.3°F (7.4°C) in the month of September.Humidity
In September, the average relative humidity is 84%.Rainfall
In Chignik Lake, in September, it is raining for 19.2 days, with typically 1.73" (44mm) of accumulated precipitation. In Chignik Lake, during the entire year, the rain falls for 160.7 days and collects up to 16.57" (421mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. In Chignik Lake, during the entire year, snow falls for 83.4 days and aggregates up to 23.94" (608mm) of snow.Daylight
In September, the average length of the day is 12h and 43min.On the first day of September, sunrise is at 7:40 am and sunset at 9:28 pm. On the last day of the month, sunrise is at 8:38 am and sunset at 8:11 pm AKDT.
Sunshine
In September, the average sunshine is 4.6h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 in September translates into these instructions:
Ensure safety - Recommendations to avert sunburn are presented. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chignik Lake in September?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing in Chignik Lake?
How many hours of daylight does Chignik Lake have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Chignik Lake have in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Chignik Lake, AK
- Average high temperature in September: 52.3°F
The warmest month (with the highest average high temperature) is August (56.8°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is August (49.1°F).
The coldest months (with the lowest average low temperature) are January and March (23.4°F).
Average pressure in September
Chignik Lake, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is December (29.54"Hg).
Average wind speed in September
Chignik Lake, AK
- Average wind speed in September: 12.6mph
The windiest month (with the highest average wind speed) is December (14.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in September
Chignik Lake, AK
- Average humidity in September: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Chignik Lake, AK
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is June (0.83").
Average rainfall days in September
Chignik Lake, AK
- Average rainfall days in September: 19.2 days
The month with the highest number of rainy days is September (19.2 days).
The month with the least rainy days is March (7.6 days).
Average snowfall in September
Chignik Lake, AK
- Average snowfall in September: 0.12"
The month with the highest snowfall is December (5.71").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Chignik Lake, AK
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Chignik Lake, AK
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 4h and 4min
The month with the most sunshine is May (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in September
Chignik Lake, AK
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is May (13 days).
The month with the least sunshine days is November (6 days).
Average UV index in September
Chignik Lake, AK
- Average UV index in September: 3
The months with the highest UV index are May, June, July, August and September (UV index 3).
The months with the lowest UV index are February, March, November and December (UV index 1).
Average cloud cover in September
Chignik Lake, AK
- Average cloud cover in September: 65
The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is May (Cloud cover 59).
Average visibility in September
Chignik Lake, AK
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
Chignik Lake, Alaska, USA
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