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
Nondalton experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a mild 57°F (13.9°C) in August to a fresh 50.5°F (10.3°C). The low temperature average during September reflects a slight decrease to a wintry 41.9°F (5.5°C) from the day's peak.Humidity
The average relative humidity in September is 82%.Rainfall
The month with the most rainfall is September, when the rain falls for 17.9 days and typically aggregates up to 3.31" (84mm) 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 0.5 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 83.4 snowfall days, and 44.37" (1127mm) of snow is accumulated.Daylight
In Nondalton, the average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 7:16 am and sunset at 9:21 pm. On the last day of September, sunrise is at 8:24 am and sunset at 7:53 pm AKDT.
Sunshine
The average sunshine in September is 5.9h.UV index
In Nondalton, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in September suggests the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. 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 average September temperature?
What is the average humidity in September?
What is the rainiest month?
How many days does it rain in September?
When does it start snowing?
How many hours of daylight does Nondalton have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Nondalton have in September?
What is the UV index intensity in September?
Average temperature in September
Nondalton, AK
- Average high temperature in September: 50.5°F
The warmest month (with the highest average high temperature) is July (59.2°F).
The month with the lowest average high temperature is January (20.1°F).
- Average low temperature in September: 41.9°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Nondalton, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.64"Hg).
Average wind speed in September
Nondalton, AK
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is December (9.9mph).
The calmest months (with the lowest average wind speed) are June and July (7.3mph).
Average humidity in September
Nondalton, AK
- Average humidity in September: 82%
The months with the highest relative humidity are February, March and December (87%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Nondalton, AK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is September (3.31").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Nondalton, AK
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Nondalton, AK
- Average snowfall in September: 0.08"
The month with the highest snowfall is December (9.33").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Nondalton, AK
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Nondalton, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Nondalton, AK
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is September (9.7 days).
Average UV index in September
Nondalton, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Nondalton, AK
- Average cloud cover in September: 55
The month with the most cloud cover is August (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 50).
Average visibility in September
Nondalton, AK
- Average visibility in September: 6mi
The months with the highest visibility are January, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February, March and December (5mi).
Nondalton, Alaska, USA
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