September weather forecast
White Marsh, VA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in White Marsh, Virginia, with an average temperature ranging between min 66.6°F (19.2°C) and max 79.9°F (26.6°C).

Temperature

September is characterized by a slight reduction in average high-temperature, easing from 85.6°F (29.8°C) in August to a still warm 79.9°F (26.6°C). White Marsh's temperature tends to fall to an average low of 66.6°F (19.2°C) during the nights of September.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 2.4" (61mm) of precipitation.

Snowfall

In White Marsh, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:50 pm EDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

White Marsh in September has an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 66.6°F (19.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

What is the driest month?

September is the month with the least rainfall in White Marsh. Rain falls for 13 days and accumulates 2.4" (61mm) of precipitation.

How many days does it rain in September in White Marsh?

In White Marsh, in September, it is raining for 13 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow?

In White Marsh, snow does not fall in April through October.

What is the average length of the day in September?

In White Marsh, the average day length in September is 12h and 25min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:50 pm EDT.

How many hours of sunshine does White Marsh have in September?

In White Marsh, Virginia, the average sunshine duration in September is 9.2h.

How high is the UV index in September?

In White Marsh, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
White Marsh, VA

Average temperature in September - White Marsh, VA
  • Average high temperature in September: 79.9°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 66.6°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in September
White Marsh, VA

Average pressure in September - White Marsh, VA
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
White Marsh, VA

Average wind speed in September - White Marsh, VA
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in September
White Marsh, VA

Average humidity in September - White Marsh, 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 (72%).

Average rainfall in September
White Marsh, VA

Average rainfall in September - White Marsh, VA
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in September
White Marsh, VA

Average rainfall days in September - White Marsh, VA
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in September
White Marsh, VA

Average snowfall in September - White Marsh, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
White Marsh, VA

Average snowfall days in September - White Marsh, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (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
White Marsh, VA

Average daylight in September / Average sunshine in September - White Marsh, 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 36min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
White Marsh, VA

Average sunshine days in September - White Marsh, VA
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
White Marsh, VA

Average UV index in September - White Marsh, VA
  • Average UV index in September: 5

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

Average cloud cover in September
White Marsh, VA

Average cloud cover in September - White Marsh, VA
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in September
White Marsh, VA

Average visibility in September - White Marsh, 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).

White Marsh, Virginia, USA

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