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
September brings a minor shift in the average high-temperature, adjusting from 81°F (27.2°C) in August to a still moderately hot 75.4°F (24.1°C). The nighttime temperature in Slab Fork, during September, averages of 54.1°F (12.3°C).Humidity
In September, the average relative humidity in Slab Fork is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 16.7 days and typically collects 1.89" (48mm) of precipitation.Snowfall
June through September are months without snowfall in Slab Fork, West Virginia.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:54 pm. On the last day of September, in Slab Fork, sunrise is at 7:20 am and sunset at 7:09 pm EDT.
Sunshine
In Slab Fork, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in Slab Fork, West Virginia, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What are September temperatures in Slab Fork?
What is the average humidity in September in Slab Fork?
What is the driest month in Slab Fork?
How much does it rain in Slab Fork in September?
When it does not snow in Slab Fork?
Does it snow in Slab Fork in September?
What is the average length of the day in September in Slab Fork?
What time are sunrise and sunset in September in Slab Fork?
How many hours of sunshine does Slab Fork have in September?
What is the UV index reading in September in Slab Fork?
Average temperature in September
Slab Fork, WV
- Average high temperature in September: 75.4°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°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Slab Fork, WV
- 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 (29.98"Hg).
Average wind speed in September
Slab Fork, WV
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Slab Fork, WV
- Average humidity in September: 79%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April, June, July, August and November (78%).
Average rainfall in September
Slab Fork, WV
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Slab Fork, WV
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in September
Slab Fork, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (8.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Slab Fork, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Slab Fork, WV
- 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 36min).
- 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: 4h and 0min).
Average sunshine days in September
Slab Fork, WV
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (7 days).
Average UV index in September
Slab Fork, WV
- Average UV index in September: 4
The months with the highest UV index are June 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
Slab Fork, WV
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Slab Fork, WV
- Average visibility in September: 4mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
Slab Fork, West Virginia, USA
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