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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 84.2°F (29°C) in August to a still moderately hot 77.9°F (25.5°C). Despite the drastic temperature difference, Grippe records an average nighttime low of 56.3°F (13.5°C) throughout September.Humidity
In Grippe, the average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall in Grippe. Rain falls for 13.5 days and accumulates 1.85" (47mm) of precipitation.Snowfall
June through September are months without snowfall in Grippe.Daylight
The average length of the day in September in Grippe is 12h and 25min.On the first day of September in Grippe, sunrise is at 6:57 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:10 pm EDT.
Sunshine
The average sunshine in September in Grippe is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during September leads to these advisories:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the usual temperature for Grippe in September?
What is the average humidity in September in Grippe?
What is the driest month in Grippe?
How much does it rain in Grippe in September?
When it does not snow in Grippe?
Does it snow in Grippe in September?
What is the average length of the day in September in Grippe?
When is the sunrise / sunset in September in Grippe?
How many hours of sunshine does Grippe have in September?
What is the UV index intensity in September in Grippe?
Average temperature in September
Grippe, WV
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Grippe, 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
Grippe, WV
- Average wind speed in September: 4.2mph
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
Grippe, WV
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).
Average rainfall in September
Grippe, WV
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Grippe, WV
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Grippe, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grippe, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grippe, WV
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
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 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Grippe, WV
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Grippe, WV
- Average UV index in September: 4
The months with the highest UV index are May, June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Grippe, 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
Grippe, 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).
Grippe, West Virginia, USA
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