September weather forecast
Valley Grove, WV

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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.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Valley Grove in September?

The high-temperature, in September, in Valley Grove, is 75.2°F (24°C), while the low-temperature averages to 55°F (12.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

How many days does it rain in September?

In Valley Grove, in September, it is raining for 12.4 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall in Valley Grove.

Does it snow in September?

In Valley Grove, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:50 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:05 pm EDT.

How many hours of sunshine does Valley Grove have in September?

In Valley Grove, the average sunshine duration in September is 8.4h.

How high is the UV index in September?

In Valley Grove, West Virginia, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Valley Grove, WV

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Valley Grove, 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: 3h and 0min).

Average sunshine days in September
Valley Grove, WV

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 - 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 - 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 - 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).

Valley Grove, West Virginia, USA

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