September weather forecast
Marvin, VA

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Weather in September

September, the first month of the autumn in Marvin, is still a warm month, with an average temperature varying between 76.1°F (24.5°C) and 53.6°F (12°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 81.7°F (27.6°C) in August to a still warm 76.1°F (24.5°C). A noteworthy thermal contrast characterizes Marvin's September nights, with temperatures averaging at a cool 53.6°F (12°C).

Humidity

The average relative humidity in September in Marvin is 78%.

Rainfall

September is the month with the least rainfall in Marvin. Rain falls for 13.2 days and accumulates 1.14" (29mm) of precipitation.

Snowfall

In Marvin, snow does not fall in June through September.

Daylight

In Marvin, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:59 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:12 pm EDT.

Sunshine

In Marvin, the average sunshine in September is 8.4h.

UV index

In Marvin, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Undertake precautions - It is suggested to shield oneself from sunburn. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the temperature in September in Marvin?

Marvin in September has an average high-temperature of 76.1°F (24.5°C) and an average low-temperature of 53.6°F (12°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is calculated to be 87.8°F (31°C).

What is the average humidity in September in Marvin?

In September, the average relative humidity in Marvin, Virginia, is 78%.

What is the driest month in Marvin?

The month with the least rainfall in Marvin is September, when the rain falls for 13.2 days and typically collects 1.14" (29mm) of precipitation.

How many days does it rain in September in Marvin?

In September, in Marvin, Virginia, the rain falls for 13.2 days. Throughout September, 1.14" (29mm) of precipitation is accumulated.

When it does not snow in Marvin?

June through September are months without snowfall.

Does it snow in Marvin in September?

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

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

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

When are sunrise and sunset in September in Marvin?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 7:56 pm. On the last day of the month, in Marvin, Virginia, sunrise is at 7:22 am and sunset at 7:12 pm EDT.

How many hours of sunshine does Marvin have in September?

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

What is the UV index intensity in September in Marvin?

In September, the average daily maximum UV index in Marvin, Virginia, is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
Marvin, VA

Average temperature in September - Marvin, VA
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 53.6°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in September
Marvin, VA

Average pressure in September - Marvin, VA
  • 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).

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Average wind speed in September
Marvin, VA

Average wind speed in September - Marvin, VA
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Marvin, VA

Average humidity in September - Marvin, VA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in September
Marvin, VA

Average rainfall in September - Marvin, VA
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is February (2.72").
The driest month (with the least rainfall) is September (1.14").

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Average rainfall days in September
Marvin, VA

Average rainfall days in September - Marvin, VA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in September
Marvin, VA

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

The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Marvin, VA

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

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Marvin, 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 2min

The months with the most sunshine are June, July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in September
Marvin, VA

Average sunshine days in September - Marvin, VA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in September
Marvin, VA

Average UV index in September - Marvin, VA
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Marvin, VA

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

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in September
Marvin, VA

Average visibility in September - Marvin, VA
  • Average visibility in September: 5mi

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

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Marvin, Virginia, USA

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