September weather forecastHorsepen, VA
September
Weather in September
September, the first month of the autumn in Horsepen, is still a warm month, with an average temperature varying between 74.8°F (23.8°C) and 52.9°F (11.6°C).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still warm 74.8°F (23.8°C) from August's moderately hot 80.6°F (27°C). During September, Horsepen's temperature records a considerable difference from its daily highs to an average low of 52.9°F (11.6°C).Humidity
In Horsepen, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall in Horsepen. Rain falls for 16.1 days and accumulates 1.54" (39mm) of precipitation.Snowfall
June through September are months without snowfall in Horsepen.Daylight
In Horsepen, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:54 pm. On the last day of September, in Horsepen, sunrise is at 7:21 am and sunset at 7:10 pm EDT.
Sunshine
In September, the average sunshine in Horsepen is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Horsepen, VA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Horsepen, 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).
Average wind speed in September
Horsepen, VA
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Horsepen, VA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Horsepen, VA
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Horsepen, VA
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is January (10 days).
Average snowfall in September
Horsepen, VA
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Horsepen, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Horsepen, VA
- Average daylight in September: 12h and 24min
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 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Horsepen, VA
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (7.1 days).
Average UV index in September
Horsepen, 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).
Average cloud cover in September
Horsepen, VA
- Average cloud cover in September: 42
The months with the most cloud cover are January and February (Cloud cover 57).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in September
Horsepen, VA
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
