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 arrival of September signals a subtle shift in temperature, down from a mild 57°F (13.9°C) in August to a fresh 50.5°F (10.3°C). September in Nondalton sees a slight dip to an average low temperature of 41.9°F (5.5°C) from the daytime highs.Humidity
In September, the average relative humidity is 82%.Rainfall
September is the month with the most rainfall. Rain falls for 17.9 days and accumulates 3.31" (84mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Nondalton. Throughout September, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Nondalton, there are 83.4 snowfall days, and 44.37" (1127mm) of snow is accumulated.Daylight
In September, the average length of the day in Nondalton 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, in Nondalton, 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 September, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 2 leads to the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What is the average September temperature in Nondalton?
What is the average humidity in September in Nondalton?
What is the wettest month in Nondalton?
How many days does it rain in September in Nondalton?
When does it start snowing in Nondalton?
How many hours of daylight does Nondalton have in September?
When are sunrise and sunset in September in Nondalton?
How long on average sun shines in September in Nondalton?
What is the UV index reading in September in Nondalton?
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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