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 beginning of September subtly marks a decrease in the average high-temperature, transitioning from 82.4°F (28°C) in August to a still moderately hot 76.5°F (24.7°C). Nighttime temperature dips to a mean of 67.1°F (19.5°C) during September.Humidity
In September, the average relative humidity is 77%.Rainfall
In Mappsville, in September, during 11.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Mappsville, during the entire year, the rain falls for 128 days and collects up to 16.1" (409mm) of precipitation.Snowfall
In Mappsville, snow does not fall in April through October.Daylight
In Mappsville, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:46 pm EDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in September transforms into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Mappsville?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Mappsville have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Mappsville have in September?
How high is the UV index in September?
Average temperature in September
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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 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
Mappsville, 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
Mappsville, 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
Mappsville, 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
Mappsville, 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).
Mappsville, Virginia, USA
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