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
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a cool 55°F (12.8°C) in August to a frosty 47.3°F (8.5°C). Klukwan nights in September witness a mild cool down to an average temperature of 38.7°F (3.7°C).Humidity
In September, the average relative humidity is 84%.Rainfall
In Klukwan, in September, it is raining for 19.5 days, with typically 4.65" (118mm) of accumulated precipitation. Throughout the year, there are 200.4 rainfall days, and 48.03" (1220mm) of precipitation is accumulated.Snowfall
In Klukwan, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 49min.On the first day of September, sunrise is at 6:02 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:37 pm AKDT.
Sunshine
The average sunshine in September is 6.4h.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 unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 2 in September transforms into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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 it does not snow?
Does it snow in September?
How many hours of daylight does Klukwan have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Klukwan have in September?
What is the UV index intensity in September?
Average temperature in September
Klukwan, AK
- Average high temperature in September: 47.3°F
The warmest month (with the highest average high temperature) is July (56.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 38.7°F
The month with the highest average low temperature is August (44.1°F).
The coldest month (with the lowest average low temperature) is February (12.4°F).
Average pressure in September
Klukwan, AK
- Average pressure in September: 29.87"Hg
The month with the highest atmospheric pressure is July (30.01"Hg).
The month with the lowest atmospheric pressure is November (29.81"Hg).
Average wind speed in September
Klukwan, AK
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is May (4.7mph).
Average humidity in September
Klukwan, AK
- Average humidity in September: 84%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Klukwan, AK
- Average rainfall in September: 4.65"
The wettest month (with the highest rainfall) is November (5.87").
The driest month (with the least rainfall) is June (2.2").
Average rainfall days in September
Klukwan, AK
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Klukwan, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (21.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Klukwan, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Klukwan, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in September
Klukwan, AK
- Average sunshine days in September: 8.2 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in September
Klukwan, 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 February, November and December (UV index 1).
Average cloud cover in September
Klukwan, AK
- Average cloud cover in September: 59
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in September
Klukwan, AK
- Average visibility in September: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Klukwan, Alaska, USA
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