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 onset corresponds with a subtle shift in the average high-temperature, slightly moving from a comfortable 63°F (17.2°C) in August to a cool 54.5°F (12.5°C). An average low-temperature of 43.2°F (6.2°C) is expected during September.Humidity
The average relative humidity in September is 80%.Rainfall
September is the month with the most rainfall. Rain falls for 19.2 days and accumulates 3.19" (81mm) 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 0.4 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 74.6 snowfall days, and 37.32" (948mm) of snow is accumulated.Daylight
In Ridgeway, the average length of the day in September is 12h and 50min.On the first day of September, sunrise is at 7:00 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 7:37 pm AKDT.
Sunshine
The average sunshine in September is 6.1h.UV index
In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 2 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Ridgeway in September?
What is the average humidity in September?
What is the wettest month?
How much does it rain in Ridgeway in September?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Ridgeway, AK
- Average high temperature in September: 54.5°F
The warmest month (with the highest average high temperature) is July (65.1°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 43.2°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in September
Ridgeway, AK
- Average pressure in September: 29.73"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.64"Hg).
Average wind speed in September
Ridgeway, AK
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are November and December (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Ridgeway, AK
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and March (90%).
The month with the lowest relative humidity is May (65%).
Average rainfall in September
Ridgeway, AK
- Average rainfall in September: 3.19"
The wettest month (with the highest rainfall) is September (3.19").
The driest month (with the least rainfall) is March (1.1").
Average rainfall days in September
Ridgeway, 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 February (7.4 days).
Average snowfall in September
Ridgeway, AK
- Average snowfall in September: 0.24"
The month with the highest snowfall is December (9.45").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Ridgeway, AK
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ridgeway, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 6h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Ridgeway, AK
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is July (13.9 days).
The month with the least sunshine days is September (9.2 days).
Average UV index in September
Ridgeway, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in September
Ridgeway, AK
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in September
Ridgeway, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February and March (4mi).
Ridgeway, Alaska, USA
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