September weather forecast
DeWitt, VA

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Weather in September

The first month of the autumn, September, is still a warm month in DeWitt, Virginia, with an average temperature varying between 63.1°F (17.3°C) and 81.1°F (27.3°C).

Temperature

The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's tropical 87.6°F (30.9°C) to a moderately hot 81.1°F (27.3°C). Throughout September, DeWitt anticipates an average low-temperature of 63.1°F (17.3°C).

Heat index

September's average heat index is evaluated at a hot 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In DeWitt, the average relative humidity in September is 75%.

Rainfall

In DeWitt, in September, it is raining for 11.1 days, with typically 1.18" (30mm) of accumulated precipitation. In DeWitt, during the entire year, the rain falls for 138.7 days and collects up to 19.72" (501mm) of precipitation.

Snowfall

May through October are months without snowfall in DeWitt.

Daylight

The average length of the day in September in DeWitt is 12h and 25min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:38 pm. On the last day of September, in DeWitt, sunrise is at 7:05 am and sunset at 6:54 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What are the temperatures in DeWitt in September?

In DeWitt, 81.1°F (27.3°C) is the average high-temperature and 63.1°F (17.3°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in September is evaluated at 86°F (30°C).

What is the average humidity in September in DeWitt?

In DeWitt, Virginia, the average relative humidity in September is 75%.

How much does it rain in DeWitt in September?

In DeWitt, during September, the rain falls for 11.1 days and regularly aggregates up to 1.18" (30mm) of precipitation.

When it does not snow in DeWitt?

In DeWitt, Virginia, snow does not fall in May through October.

What is the average length of the day in September in DeWitt?

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

When are sunrise and sunset in September in DeWitt?

On the first day of September, sunrise is at 6:41 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:54 pm EDT.

How many hours of sunshine does DeWitt have in September?

In DeWitt, the average sunshine duration in September is 8.9h.

How high is the UV index in September in DeWitt?

The average daily maximum UV index in September in DeWitt is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
DeWitt, VA

Average temperature in September - DeWitt, VA
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in September
DeWitt, VA

Average pressure in September - DeWitt, VA
  • Average pressure in September: 30.04"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
DeWitt, VA

Average wind speed in September - DeWitt, VA
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in September
DeWitt, VA

Average humidity in September - DeWitt, VA
  • Average humidity in September: 75%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
DeWitt, VA

Average rainfall in September - DeWitt, VA
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is October (1.14").

Average rainfall days in September
DeWitt, VA

Average rainfall days in September - DeWitt, VA
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is October (7.5 days).

Average snowfall in September
DeWitt, VA

Average snowfall in September - DeWitt, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
DeWitt, VA

Average snowfall days in September - DeWitt, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
DeWitt, VA

Average daylight in September / Average sunshine in September - DeWitt, VA
  • 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 42min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 24min).

Average sunshine days in September
DeWitt, VA

Average sunshine days in September - DeWitt, VA
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (13.1 days).

Average UV index in September
DeWitt, VA

Average UV index in September - DeWitt, VA
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
DeWitt, VA

Average cloud cover in September - DeWitt, VA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
DeWitt, VA

Average visibility in September - DeWitt, VA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

DeWitt, Virginia, USA

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