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
In September, the average high-temperature marginally decreases from 85.5°F (29.7°C) in August to a still warm 79°F (26.1°C). An average low-temperature of 57.6°F (14.2°C) marks the nights in Clifton throughout September.Humidity
In September, the average relative humidity in Clifton, West Virginia, is 75%.Rainfall
September is the month with the least rainfall in Clifton. Rain falls for 12.6 days and accumulates 1.93" (49mm) of precipitation.Snowfall
May through September are months without snowfall in Clifton, West Virginia.Daylight
In Clifton, the average length of the day in September is 12h and 26min.On the first day of September in Clifton, sunrise is at 6:57 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index in Clifton is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the average September temperature in Clifton?
What is the average humidity in September in Clifton?
What is the driest month in Clifton?
How much does it rain in Clifton in September?
When it does not snow in Clifton?
Does it snow in Clifton in September?
What is the average length of the day in September in Clifton?
When is the sunrise / sunset in September in Clifton?
How long on average sun shines in September in Clifton?
How high is the UV index in September in Clifton?
Average temperature in September
Clifton, 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 (37.2°F).
- Average low temperature in September: 57.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Clifton, 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
Clifton, WV
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Clifton, 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
Clifton, WV
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Clifton, WV
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Clifton, WV
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Clifton, 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
Clifton, 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
Clifton, WV
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in September
Clifton, 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
Clifton, 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 32).
Average visibility in September
Clifton, 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).
Clifton, West Virginia, USA
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