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 transition into September marks the average high-temperature at a still warm 75.7°F (24.3°C), differing minimally from August's 80.6°F (27°C). During September, Widener Valley notes a substantial drop from the daytime peak to an average minimum temperature of 53.6°F (12°C).Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.2 days and typically collects 1.38" (35mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Widener Valley, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September in Widener Valley is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Widener Valley in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Widener Valley have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Widener Valley have in September?
How high is the UV index in September?
Average temperature in September
Widener Valley, VA
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Widener Valley, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Widener Valley, VA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are January and April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Widener Valley, VA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Widener Valley, VA
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is February (3.43").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Widener Valley, VA
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in September
Widener Valley, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Widener Valley, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Widener Valley, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Widener Valley, VA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in September
Widener Valley, VA
- Average UV index in September: 4
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Widener Valley, VA
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 35).
Average visibility in September
Widener Valley, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Widener Valley, Virginia, USA
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