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
A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 81.7°F (27.6°C) in August to a still warm 75.4°F (24.1°C). During the nights in September, the temperature averages to a cool 55°F (12.8°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 14 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 182.9 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Wellsburg, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:05 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In Wellsburg, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Wellsburg in September?
What is the average humidity in September?
How much 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 in Wellsburg?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Wellsburg, WV
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Wellsburg, WV
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Wellsburg, WV
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Wellsburg, WV
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Wellsburg, WV
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is April (3.5").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Wellsburg, WV
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is November (11.1 days).
Average snowfall in September
Wellsburg, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Wellsburg, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wellsburg, WV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Wellsburg, WV
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is January (8.5 days).
Average UV index in September
Wellsburg, WV
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Wellsburg, WV
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Wellsburg, WV
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
Wellsburg, West Virginia, USA
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