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 September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 85.6°F (29.8°C) in August to a still warm 79°F (26.1°C). In the month of September, Upper Flats records a consistent average low-temperature of 57.7°F (14.3°C).Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall in Upper Flats. Rain falls for 13.1 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Upper Flats, snow does not fall in May through September.Daylight
In Upper Flats, West Virginia, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:57 pm. On the last day of September, in Upper Flats, sunrise is at 7:23 am and sunset at 7:11 pm EDT.
Sunshine
In Upper Flats, the average sunshine in September is 8.1h.UV index
In Upper Flats, West Virginia, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the temperature in September in Upper Flats?
What is the average humidity in September in Upper Flats?
What is the driest month in Upper Flats?
How many days does it rain in September in Upper Flats?
When it does not snow in Upper Flats?
Does it snow in Upper Flats in September?
How many hours of daylight does Upper Flats have in September?
When is the sunrise / sunset in September in Upper Flats?
How long on average sun shines in September in Upper Flats?
How high is the UV index in September in Upper Flats?
Average temperature in September
Upper Flats, WV
- Average high temperature in September: 79°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 (37.8°F).
- Average low temperature in September: 57.7°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 (23.9°F).
Average pressure in September
Upper Flats, 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
Upper Flats, WV
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Upper Flats, WV
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Upper Flats, WV
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Upper Flats, WV
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in September
Upper Flats, WV
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Upper Flats, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Upper Flats, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Upper Flats, WV
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in September
Upper Flats, 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
Upper Flats, WV
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Upper Flats, WV
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Upper Flats, West Virginia, USA
Weather forecast for your location
2. Allow the app to use your location
