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, the average high-temperature subtly recedes from August's moderately hot 82.6°F (28.1°C) to a still warm 76.8°F (24.9°C). West Union observes an average low-temperature of 55.4°F (13°C) during September nights.Humidity
In September, the average relative humidity in West Union is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 15.1 days and typically collects 2.24" (57mm) of precipitation.Snowfall
In West Union, snow does not fall in June through September.Daylight
In September, the average length of the day in West Union is 12h and 26min.On the first day of September in West Union, sunrise is at 6:52 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:06 pm EDT.
Sunshine
In West Union, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in West Union?
What is the average humidity in September in West Union?
What is the driest month in West Union?
How much does it rain in West Union in September?
When it does not snow in West Union?
Does it snow in West Union in September?
What is the average length of the day in September in West Union?
When is the sunrise / sunset in September in West Union?
How many hours of sunshine does West Union have in September?
What is the UV index reading in September in West Union?
Average temperature in September
West Union, WV
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in September
West Union, 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
West Union, WV
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
West Union, WV
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, August and November (77%).
Average rainfall in September
West Union, WV
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in September
West Union, WV
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in September
West Union, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Union, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Union, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
West Union, WV
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in September
West Union, 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
West Union, WV
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
West Union, WV
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
West Union, West Virginia, USA
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