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 advent of September brings a subtle shift in temperature, with the average high moving from 79.2°F (26.2°C) in August to a still moderately hot 73.8°F (23.2°C). West Jefferson's nights in September experience an average temperature drop to a cool 53.6°F (12°C).Humidity
The months with the highest humidity are May and September, with an average relative humidity of 80%.Rainfall
September is the month with the least rainfall. Rain falls for 10 days and accumulates 1.26" (32mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:10 pm EDT.
Sunshine
The average sunshine in September is 8h.UV index
In West Jefferson, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What are the most humid months?
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?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does West Jefferson have in September?
What is the UV index intensity in September?
Average temperature in September
West Jefferson, NC
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
West Jefferson, NC
- 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
West Jefferson, NC
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
West Jefferson, NC
- Average humidity in September: 80%
The months with the highest relative humidity are May and September (80%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
West Jefferson, NC
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in September
West Jefferson, NC
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is November (6.1 days).
Average snowfall in September
West Jefferson, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Jefferson, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Jefferson, NC
- 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 0min
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: 5h and 12min).
Average sunshine days in September
West Jefferson, NC
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in September
West Jefferson, NC
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
West Jefferson, NC
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and July (Cloud cover 36).
Average visibility in September
West Jefferson, NC
- Average visibility in September: 4mi
The month with the highest visibility is November (6mi).
The month with the lowest visibility is September (4mi).
West Jefferson, North Carolina, USA
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