September weather forecast
Gasburg, VA

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Weather in September

September, the first month of the autumn in Gasburg, is still a warm month, with an average temperature varying between 81.1°F (27.3°C) and 63°F (17.2°C).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a tropical 87.1°F (30.6°C) in August to a moderately hot 81.1°F (27.3°C). The low-temperature averages to a comfortable 63°F (17.2°C) during the nights of September.

Heat index

The heat index for September is estimated at a hot 86°F (30°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Gasburg, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:56 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

In Gasburg, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What are September temperatures?

In Gasburg, in September, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 63°F (17.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.85" (47mm) of precipitation.

How much does it rain in September?

In Gasburg, in September, it is raining for 12 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

In Gasburg, the average day length in September is 12h and 24min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:56 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 September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Gasburg, VA

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

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in September: 63°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 (31.1°F).

Average pressure in September
Gasburg, VA

Average pressure in September - Gasburg, VA
  • Average pressure in September: 30.03"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
Gasburg, VA

Average wind speed in September - Gasburg, VA
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in September
Gasburg, VA

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

The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (73%).

Average rainfall in September
Gasburg, VA

Average rainfall in September - Gasburg, VA
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (3.03").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Gasburg, VA

Average rainfall days in September - Gasburg, VA
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in September
Gasburg, VA

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

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Gasburg, VA

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

The month with the highest number of snowfall days is February (3 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
Gasburg, VA

Average daylight in September / Average sunshine in September - Gasburg, VA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

Average sunshine days in September
Gasburg, VA

Average sunshine days in September - Gasburg, VA
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in September
Gasburg, VA

Average UV index in September - Gasburg, 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
Gasburg, VA

Average cloud cover in September - Gasburg, VA
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 32).

Average visibility in September
Gasburg, VA

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

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Gasburg, Virginia, USA

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