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 onset of September, Walnut Bottom's average high-temperature slightly adjusts, moderately receding from August's warm 82.4°F (28°C) to a still moderately hot 75.2°F (24°C). A noticeable downturn in temperature characterizes the September nights in Walnut Bottom, averaging at a cool 52.7°F (11.5°C).Humidity
September, October and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Walnut Bottom, in September, during 6.7 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 91.2 rainfall days, and 6.61" (168mm) of precipitation is accumulated.Snowfall
In Walnut Bottom, snow does not fall in May through October.Daylight
In Walnut Bottom, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:45 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:59 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Walnut Bottom, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Undertake protective steps - Preventing sun damage is advised. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in Walnut Bottom?
What time are sunrise and sunset in September?
How many hours of sunshine does Walnut Bottom have in September?
How high is the UV index in September in Walnut Bottom?
Average temperature in September
Walnut Bottom, WV
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Walnut Bottom, WV
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Walnut Bottom, WV
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Walnut Bottom, WV
- Average humidity in September: 78%
The months with the highest relative humidity are September, October and December (78%).
The months with the lowest relative humidity are April, June and July (74%).
Average rainfall in September
Walnut Bottom, WV
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is August (0.75").
The driest months (with the least rainfall) are January and November (0.35").
Average rainfall days in September
Walnut Bottom, WV
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is May (10.9 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Walnut Bottom, WV
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Walnut Bottom, WV
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Walnut Bottom, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 12min).
Average sunshine days in September
Walnut Bottom, WV
- Average sunshine days in September: 21.2 days
The months with the most sunshine days are January, November and December (22.7 days).
The month with the least sunshine days is May (18.3 days).
Average UV index in September
Walnut Bottom, WV
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Walnut Bottom, WV
- Average cloud cover in September: 39
The months with the most cloud cover are January and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Walnut Bottom, WV
- Average visibility in September: 5mi
The months with the highest visibility are January, February, April, November and December (6mi).
The months with the lowest visibility are March, May, June, July, August, September and October (5mi).
Walnut Bottom, West Virginia, USA
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