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
Rocky Gap's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 80.8°F (27.1°C) in August to a still moderately hot 75°F (23.9°C). Rocky Gap sees a large disparity in day to night temperatures in September, with the night temperature dropping to an average of 52.9°F (11.6°C).Humidity
The average relative humidity in September in Rocky Gap is 79%.Rainfall
September is the month with the least rainfall in Rocky Gap. Rain falls for 14.5 days and accumulates 1.5" (38mm) of precipitation.Snowfall
June through September are months without snowfall in Rocky Gap.Daylight
In Rocky Gap, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:08 pm EDT.
Sunshine
In Rocky Gap, the average sunshine in September is 8.4h.UV index
In Rocky Gap, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Take precautions - Protection against skin and eye damage is obliged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rocky Gap in September?
What is the average humidity in September in Rocky Gap?
What is the driest month in Rocky Gap?
How much does it rain in Rocky Gap in September?
When it does not snow in Rocky Gap?
Does it snow in Rocky Gap in September?
How many hours of daylight does Rocky Gap have in September?
When is the sunrise / sunset in September in Rocky Gap?
How long on average sun shines in September in Rocky Gap?
What is the UV index intensity in September in Rocky Gap?
Average temperature in September
Rocky Gap, VA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (37.9°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 (23.7°F).
Average pressure in September
Rocky Gap, 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
Rocky Gap, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Rocky Gap, VA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, June, July, August and November (77%).
Average rainfall in September
Rocky Gap, VA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Rocky Gap, VA
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (10 days).
Average snowfall in September
Rocky Gap, VA
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rocky Gap, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rocky Gap, 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 month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Rocky Gap, VA
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (16.5 days).
The months with the least sunshine days are February and May (9.8 days).
Average UV index in September
Rocky Gap, VA
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Rocky Gap, VA
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Rocky Gap, 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).
Rocky Gap, Virginia, USA
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