September weather forecastValley Grove, WV
September
Weather in September
September, the first month of the autumn in Valley Grove, is also a moderately hot month, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 75.2°F (24°C).Temperature
Valley Grove in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 81.5°F (27.5°C) to a still warm 75.2°F (24°C). September nights are marked by an average low-temperature of 55°F (12.8°C).Humidity
In Valley Grove, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 12.4 days. Throughout September, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 147 rainfall days, and 19.57" (497mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Valley Grove, the average length of the day in September is 12h and 26min.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 Valley Grove, the average sunshine in September is 8.4h.UV index
In Valley Grove, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valley Grove, 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 (33.4°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Valley Grove, WV
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Valley Grove, WV
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Valley Grove, WV
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Valley Grove, WV
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Valley Grove, WV
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Valley Grove, WV
- Average snowfall in September: 0"
The months with the highest snowfall are February and March (2.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Valley Grove, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Valley Grove, WV
- Average daylight in September: 12h and 24min
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 24min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Valley Grove, WV
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in September
Valley Grove, WV
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Valley Grove, 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
Valley Grove, 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, February, March, May, June, July, August, September, October and December (5mi).
