September weather forecastSwan Pond, WV
September
Weather in September
The first month of the autumn, September, is still a warm month in Swan Pond, West Virginia, with an average temperature fluctuating between 76.8°F (24.9°C) and 56.7°F (13.7°C).Temperature
The average high-temperature shows a slight dip in September, from August's 83.8°F (28.8°C) to a still warm 76.8°F (24.9°C). September nights observe an average temperature dip to a refreshing 56.7°F (13.7°C).Humidity
The average relative humidity in September is 77%.Rainfall
In September, in Swan Pond, the rain falls for 14.5 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. In Swan Pond, during the entire year, the rain falls for 169.2 days and collects up to 32.6" (828mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Swan Pond, the average length of the day in September is 12h and 26min.On the first day of September in Swan Pond, West Virginia, sunrise is at 6:40 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:55 pm EDT.
Sunshine
In Swan Pond, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Swan Pond, WV
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Swan Pond, WV
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Swan Pond, WV
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are January, February, March and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Swan Pond, WV
- Average humidity in September: 77%
The months with the highest relative humidity are May, October and December (78%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in September
Swan Pond, WV
- Average rainfall in September: 2.24"
The wettest months (with the highest rainfall) are May and July (3.54").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in September
Swan Pond, WV
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Swan Pond, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Swan Pond, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Swan Pond, WV
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Swan Pond, WV
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in September
Swan Pond, WV
- Average UV index in September: 4
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, February, November and December (UV index 2).
Average cloud cover in September
Swan Pond, WV
- Average cloud cover in September: 37
The months with the most cloud cover are March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Swan Pond, WV
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).
