September weather forecast
Four States, WV

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Four States, West Virginia, with an average temperature ranging between min 54.7°F (12.6°C) and max 76.1°F (24.5°C).

Temperature

Four States's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). An average nighttime temperature of 54.7°F (12.6°C) is witnessed throughout September.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Four States, during September, the rain falls for 15.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Four States, during the entire year, the rain falls for 188.6 days and collects up to 39.17" (995mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Four States, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:04 pm EDT.

Sunshine

In Four States, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What are September temperatures?

In Four States, 76.1°F (24.5°C) is the average high-temperature and 54.7°F (12.6°C) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

How many days does it rain in September?

In Four States, in September, it is raining for 15.4 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow?

In Four States, snow does not fall in June through September.

Does it snow in September?

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

How many hours of daylight does Four States have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:51 pm. On the last day of the month, in Four States, sunrise is at 7:17 am and sunset at 7:04 pm EDT.

How many hours of sunshine does Four States have in September?

The average sunshine duration in September is 8.5h.

What is the UV index intensity in September?

The average daily maximum UV index in September in Four States is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Four States, WV

Average temperature in September - Four States, WV
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in September: 54.7°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 (22.5°F).

Average pressure in September
Four States, WV

Average pressure in September - Four States, 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 (29.96"Hg).

Average wind speed in September
Four States, WV

Average wind speed in September - Four States, WV
  • Average wind speed in September: 4.5mph

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 (4.2mph).

Average humidity in September
Four States, WV

Average humidity in September - Four States, WV
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in September
Four States, WV

Average rainfall in September - Four States, WV
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (2.24").

Average rainfall days in September
Four States, WV

Average rainfall days in September - Four States, WV
  • Average rainfall days in September: 15.4 days

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in September
Four States, WV

Average snowfall in September - Four States, WV
  • Average snowfall in September: 0"

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Four States, WV

Average snowfall days in September - Four States, WV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Four States, WV

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in September
Four States, WV

Average sunshine days in September - Four States, WV
  • Average sunshine days in September: 12.2 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.8 days).

Average UV index in September
Four States, WV

Average UV index in September - Four States, WV
  • Average UV index in September: 4

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

Average cloud cover in September
Four States, WV

Average cloud cover in September - Four States, 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 37).

Average visibility in September
Four States, WV

Average visibility in September - Four States, WV
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Four States, West Virginia, USA

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