Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 79.9°F (26.6°C) from August's warm 85.6°F (29.8°C). Throughout September, the temperature in White Marsh tends to fall to a consistent average low of 66.6°F (19.2°C).Humidity
In White Marsh, 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
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, 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.
Sunshine
The average sunshine in September in White Marsh is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are September temperatures in White Marsh?
What is the average humidity in September in White Marsh?
What is the driest month in White Marsh?
How much does it rain in White Marsh in September?
When it does not snow in White Marsh?
What is the average length of the day in September in White Marsh?
When are sunrise and sunset in September in White Marsh?
How many hours of sunshine does White Marsh have in September?
What is the UV index intensity in September in White Marsh?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
Weather forecast for your location
2. Allow the app to use your location
