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
Transition into September subtly marks a drop in the average high-temperature, moderately moving from 80.8°F (27.1°C) in August to a still warm 75°F (23.9°C). Glen Jean's temperature lowers to a mean of 54.1°F (12.3°C) during the nights in September.Humidity
The average relative humidity in September is 80%.Rainfall
In Glen Jean, during September, the rain falls for 13.8 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Glen Jean, during the entire year, the rain falls for 173.9 days and collects up to 22.64" (575mm) of precipitation.Snowfall
June through September are months without snowfall in Glen Jean.Daylight
In Glen Jean, West Virginia, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:53 pm. On the last day of September, in Glen Jean, West Virginia, sunrise is at 7:19 am and sunset at 7:08 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In Glen Jean, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Glen Jean have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Glen Jean have in September?
How high is the UV index in September?
Average temperature in September
Glen Jean, WV
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 54.1°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 (23.5°F).
Average pressure in September
Glen Jean, WV
- 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 (29.98"Hg).
Average wind speed in September
Glen Jean, WV
- Average wind speed in September: 4.6mph
The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Glen Jean, WV
- Average humidity in September: 80%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).
Average rainfall in September
Glen Jean, WV
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in September
Glen Jean, WV
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in September
Glen Jean, WV
- Average snowfall in September: 0"
The months with the highest snowfall are January and March (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Glen Jean, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glen Jean, WV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Glen Jean, WV
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in September
Glen Jean, WV
- 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, March, November and December (UV index 2).
Average cloud cover in September
Glen Jean, WV
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Glen Jean, WV
- Average visibility in September: 4mi
The months with the highest visibility are February, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January and September (4mi).
Glen Jean, West Virginia, USA
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