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
As August makes way for September, Mountain's average high-temperature eases from a warm 83.8°F (28.8°C) to a still moderately hot 77.4°F (25.2°C). Mountain throughout September, experiences an average nighttime temperature of 56.3°F (13.5°C).Humidity
In Mountain, West Virginia, the average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 14.6 days and accumulates 2.13" (54mm) of precipitation.Snowfall
In Mountain, snow does not fall in May through September.Daylight
The average length of the day in September in Mountain is 12h and 26min.On the first day of September in Mountain, West Virginia, sunrise is at 6:52 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:07 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Undertake protective steps - Preventing sun damage is advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the temperature in September in Mountain?
What is the average humidity in September in Mountain?
What is the driest month in Mountain?
How much does it rain in Mountain in September?
When it does not snow in Mountain?
Does it snow in Mountain in September?
What is the average length of the day in September in Mountain?
What time are sunrise and sunset in September in Mountain?
How long on average sun shines in September in Mountain?
What is the UV index intensity in September in Mountain?
Average temperature in September
Mountain, WV
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Mountain, WV
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Mountain, WV
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Mountain, WV
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall in September
Mountain, WV
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in September
Mountain, WV
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is November (12.2 days).
Average snowfall in September
Mountain, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Mountain, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mountain, 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 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Mountain, WV
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in September
Mountain, WV
- Average UV index in September: 4
The months with the highest UV index are 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, WV
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Mountain, WV
- Average visibility in September: 5mi
The month with the highest visibility is November (6mi).
The month with the lowest visibility is January (4mi).
Mountain, West Virginia, USA
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