September weather forecast
Bison, WV

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bison, West Virginia, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 75.6°F (24.2°C).

Temperature

With the beginning of September, the average high-temperature shows a small decrease, transitioning from a moderately hot 81.5°F (27.5°C) in August to a still warm 75.6°F (24.2°C). The average temperature drops to a fresh 54.5°F (12.5°C) during the night in the month of September.

Humidity

In Bison, West Virginia, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 14.8 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Bison, West Virginia, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:52 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:06 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In September, in Bison, the average high-temperature is 75.6°F (24.2°C), and the average low-temperature is 54.5°F (12.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 87.8°F (31°C).

What is the average humidity in September?

In Bison, the average relative humidity in September is 78%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 14.8 days and typically collects 1.93" (49mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 14.8 days. Throughout September, 1.93" (49mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Bison have in September?

In September, the average day length is 12h and 26min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:52 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:06 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.7h.

How high is the UV index in September?

In Bison, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Bison, WV

Average temperature in September - Bison, WV
  • Average high temperature in September: 75.6°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in September
Bison, WV

Average pressure in September - Bison, WV
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Bison, WV

Average wind speed in September - Bison, WV
  • Average wind speed in September: 4.4mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in September
Bison, WV

Average humidity in September - Bison, WV
  • Average humidity in September: 78%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).

Average rainfall in September
Bison, WV

Average rainfall in September - Bison, WV
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September
Bison, WV

Average rainfall days in September - Bison, WV
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (12.9 days).

Average snowfall in September
Bison, WV

Average snowfall in September - Bison, WV
  • Average snowfall in September: 0"

The month with the highest snowfall is January (8.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bison, WV

Average snowfall days in September - Bison, WV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bison, WV

Average daylight in September / Average sunshine in September - Bison, WV
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September
Bison, WV

Average sunshine days in September - Bison, WV
  • Average sunshine days in September: 12.6 days

The month with the most sunshine days is October (14.3 days).
The months with the least sunshine days are January and February (7.3 days).

Average UV index in September
Bison, WV

Average UV index in September - Bison, WV
  • Average UV index in September: 4

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Bison, WV

Average cloud cover in September - Bison, WV
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Bison, WV

Average visibility in September - Bison, WV
  • Average visibility in September: 5mi

The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).

Bison, West Virginia, USA

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