September weather forecast
Big Sandy, WV

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Weather in September

September, the first month of the autumn in Big Sandy, is also a moderately hot month, with an average temperature fluctuating between 54.1°F (12.3°C) and 76.3°F (24.6°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from a moderately hot 82°F (27.8°C) in August to a still warm 76.3°F (24.6°C). In September, Big Sandy experiences a significant drop from daily zeniths to an average nighttime temperature of 54.1°F (12.3°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 15.2 days and typically collects 1.54" (39mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:11 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Big Sandy, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Big Sandy in September?

An average high-temperature, in September, in Big Sandy, is 76.3°F (24.6°C) and the average low-temperature is 54.1°F (12.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), 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?

The average relative humidity in September is 78%.

What is the driest month in Big Sandy?

The month with the least rainfall is September, when the rain falls for 15.2 days and typically collects 1.54" (39mm) of precipitation.

How much does it rain in September?

In Big Sandy, in September, during 15.2 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Big Sandy have in September?

The average day length in September is 12h and 25min.

When is the sunrise / sunset in September in Big Sandy?

On the first day of September, sunrise is at 6:57 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:11 pm EDT.

How long on average sun shines in September?

In Big Sandy, the average sunshine duration in September is 8.4h.

How high is the UV index in September?

In Big Sandy, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from 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
Big Sandy, WV

Average temperature in September - Big Sandy, WV
  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in September: 54.1°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in September
Big Sandy, WV

Average pressure in September - Big Sandy, 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 (29.99"Hg).

Average wind speed in September
Big Sandy, WV

Average wind speed in September - Big Sandy, WV
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Big Sandy, WV

Average humidity in September - Big Sandy, WV
  • Average humidity in September: 78%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July, August and November (76%).

Average rainfall in September
Big Sandy, WV

Average rainfall in September - Big Sandy, WV
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in September
Big Sandy, WV

Average rainfall days in September - Big Sandy, WV
  • Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and November (10.1 days).

Average snowfall in September
Big Sandy, WV

Average snowfall in September - Big Sandy, WV
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Big Sandy, WV

Average snowfall days in September - Big Sandy, WV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Big Sandy, WV

Average daylight in September / Average sunshine in September - Big Sandy, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Big Sandy, WV

Average sunshine days in September - Big Sandy, WV
  • Average sunshine days in September: 11.8 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (9.2 days).

Average UV index in September
Big Sandy, WV

Average UV index in September - Big Sandy, WV
  • Average UV index in September: 4

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

Average cloud cover in September
Big Sandy, WV

Average cloud cover in September - Big Sandy, WV
  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 36).

Average visibility in September
Big Sandy, WV

Average visibility in September - Big Sandy, 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).

Big Sandy, West Virginia, USA

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