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 start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 84°F (28.9°C) in August to a still moderately hot 77°F (25°C). During September, Mountain Mission sees a mean low-temperature of 56.8°F (13.8°C).Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.89" (48mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:40 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:54 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Mountain Mission?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Mountain Mission have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Mountain Mission have in September?
How high is the UV index in September?
Average temperature in September
Mountain Mission, WV
- Average high temperature in September: 77°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in September
Mountain Mission, 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
Mountain Mission, WV
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Mountain Mission, WV
- Average humidity in September: 77%
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Mountain Mission, WV
- Average rainfall in September: 1.89"
The wettest months (with the highest rainfall) are May, July and August (3.15").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Mountain Mission, WV
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in September
Mountain Mission, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Mountain Mission, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 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
Mountain Mission, WV
- Average daylight in September: 12h and 2min
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 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Mountain Mission, WV
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in September
Mountain Mission, 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
Mountain Mission, WV
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Mountain Mission, WV
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, May, September and October (5mi).
Mountain Mission, West Virginia, USA
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