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 start of September signals a gentle decrease in the average high-temperature, transitioning from a moderately hot 80.6°F (27°C) in August to a still warm 74.5°F (23.6°C). Contrasted against daytime highs, True records an average nighttime low of 52.3°F (11.3°C) in September.Humidity
In September, the average relative humidity in True is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.1 days and typically collects 1.34" (34mm) of precipitation.Snowfall
June through September are months without snowfall in True.Daylight
In True, West Virginia, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:07 pm EDT.
Sunshine
In True, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Take precautions - Protection against sun damage is advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in True in September?
What is the average humidity in September in True?
What is the driest month in True?
How much does it rain in True in September?
When it does not snow in True?
Does it snow in True in September?
What is the average length of the day in September in True?
What time are sunrise and sunset in September in True?
How long on average sun shines in September in True?
What is the UV index intensity in September in True?
Average temperature in September
True, WV
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
True, 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
True, WV
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
True, WV
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are June, July and November (78%).
Average rainfall in September
True, WV
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
True, WV
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
True, WV
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
True, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
True, WV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
True, WV
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (10 days).
Average UV index in September
True, WV
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
True, WV
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
True, WV
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).
True, West Virginia, USA
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