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 arrival of September signals a subtle shift in temperature, down from a warm 81.9°F (27.7°C) in August to a still moderately hot 75.2°F (24°C). Nightly temperatures drop to an average low of 55°F (12.8°C) in September.Humidity
The average relative humidity in September is 79%.Rainfall
In Weirton, in September, during 14.9 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, in Weirton, there are 175.9 rainfall days, and 31.22" (793mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Weirton, 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
In September, the average sunshine is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures 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?
How many hours of daylight does Weirton have in September?
When are sunrise and sunset in September in Weirton?
How many hours of sunshine does Weirton have in September?
What is the UV index intensity in September?
Average temperature in September
Weirton, WV
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Weirton, 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 (29.94"Hg).
Average wind speed in September
Weirton, WV
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Weirton, 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
Weirton, WV
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Weirton, WV
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in September
Weirton, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Weirton, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Weirton, 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 18min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Weirton, WV
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (15.5 days).
The months with the least sunshine days are January and May (8.8 days).
Average UV index in September
Weirton, 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
Weirton, WV
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Weirton, 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).
Weirton, West Virginia, USA
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