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 is marked by a subtle drop in average high-temperatures, transitioning from 84.2°F (29°C) in August to a still warm 77°F (25°C). Throughout the month of September, Blairton reports a steady low-temperature average of 56.7°F (13.7°C).Humidity
In Blairton, the average relative humidity in September is 77%.Rainfall
In Blairton, in September, during 10 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Blairton, during the entire year, the rain falls for 117.3 days and collects up to 12.24" (311mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Blairton, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Blairton have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Blairton have in September?
What is the UV index reading in September?
Average temperature in September
Blairton, WV
- Average high temperature in September: 77°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 (37.4°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Blairton, 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 (29.95"Hg).
Average wind speed in September
Blairton, WV
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Blairton, WV
- Average humidity in September: 77%
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Blairton, WV
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Blairton, WV
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Blairton, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Blairton, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Blairton, 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 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Blairton, WV
- Average sunshine days in September: 18 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (14.6 days).
Average UV index in September
Blairton, 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
Blairton, WV
- Average cloud cover in September: 37
The months with the most cloud cover are January, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Blairton, WV
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).
Blairton, West Virginia, USA
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