September weather forecast
Greenbackville, VA

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Weather in September

September, the first month of the autumn in Greenbackville, is also a moderately hot month, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 67.1°F (19.5°C).

Temperature

September ushers in a minor alteration in Greenbackville's climate, with the average high-temperature moving from August's 82.4°F (28°C) to a still moderately hot 76.5°F (24.7°C). Greenbackville throughout September, records an average low-temperature of 67.1°F (19.5°C).

Humidity

In Greenbackville, the average relative humidity in September is 77%.

Rainfall

In September, in Greenbackville, Virginia, the rain falls for 11.2 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 128 rainfall days, and 16.1" (409mm) of precipitation is accumulated.

Snowfall

In Greenbackville, snow does not fall in April through October.

Daylight

The average length of the day in September in Greenbackville is 12h and 25min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of September, in Greenbackville, sunrise is at 6:56 am and sunset at 6:45 pm EDT.

Sunshine

In Greenbackville, the average sunshine in September is 9.3h.

UV index

In Greenbackville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 5 in September transforms into this advice:
Act with care - The suggestion to avoid sunburn is emphasized. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Greenbackville in September?

During September, Greenbackville experiences an average high-temperature of 76.5°F (24.7°C) and a low-temperature of 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 89.6°F (32°C).

What is the average humidity in September in Greenbackville?

The average relative humidity in September in Greenbackville, Virginia, is 77%.

How much does it rain in Greenbackville in September?

In Greenbackville, in September, it is raining for 11.2 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow in Greenbackville?

April through October are months without snowfall in Greenbackville, Virginia.

How many hours of daylight does Greenbackville have in September?

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

When is the sunrise / sunset in September in Greenbackville?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, in Greenbackville, sunrise is at 6:56 am and sunset at 6:45 pm EDT.

How many hours of sunshine does Greenbackville have in September?

In September, the average sunshine duration in Greenbackville, Virginia, is 9.3h.

What is the UV index intensity in September in Greenbackville?

The average daily maximum UV index in September in Greenbackville, Virginia, is 5. 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
Greenbackville, VA

Average temperature in September - Greenbackville, VA
  • Average high temperature in September: 76.5°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 (43.5°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in September
Greenbackville, VA

Average pressure in September - Greenbackville, VA
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Greenbackville, VA

Average wind speed in September - Greenbackville, VA
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is August (7.9mph).

Average humidity in September
Greenbackville, VA

Average humidity in September - Greenbackville, VA
  • Average humidity in September: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (73%).

Average rainfall in September
Greenbackville, VA

Average rainfall in September - Greenbackville, VA
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is May (1.06").

Average rainfall days in September
Greenbackville, VA

Average rainfall days in September - Greenbackville, VA
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in September
Greenbackville, VA

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

The month with the highest snowfall is March (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Greenbackville, VA

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

The months with the highest number of snowfall days are January and February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Greenbackville, VA
  • 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 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Greenbackville, VA

Average sunshine days in September - Greenbackville, VA
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (14.7 days).

Average UV index in September
Greenbackville, VA

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

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

Average cloud cover in September
Greenbackville, VA

Average cloud cover in September - Greenbackville, VA
  • Average cloud cover in September: 33

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Greenbackville, VA

Average visibility in September - Greenbackville, 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).

Greenbackville, Virginia, USA

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