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
A modest decline in the average high-temperature is seen during September, decreasing from a moderately hot 81.9°F (27.7°C) in August to a still warm 75.2°F (24°C). Throughout September, Mathias experiences a low-temperature average of 54.3°F (12.4°C).Humidity
In Mathias, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. Throughout the year, in Mathias, there are 147.6 rainfall days, and 21.02" (534mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Mathias, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:59 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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?
Does it snow in September?
How many hours of daylight does Mathias have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Mathias have in September?
What is the UV index intensity in September?
Average temperature in September
Mathias, WV
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in September
Mathias, 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
Mathias, WV
- Average wind speed in September: 4.4mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Mathias, WV
- Average humidity in September: 78%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in September
Mathias, WV
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Mathias, WV
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (8 days).
Average snowfall in September
Mathias, WV
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Mathias, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Mathias, 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 30min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Mathias, WV
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12 days).
Average UV index in September
Mathias, 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
Mathias, WV
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Mathias, WV
- Average visibility in September: 5mi
The months with the highest visibility are January, February, April, June, July, November and December (6mi).
The months with the lowest visibility are March, May, August, September and October (5mi).
Mathias, West Virginia, USA
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