September weather forecastMainesburg, PA
September
Weather in September
September, the first month of the autumn in Mainesburg, is still a pleasant month, with an average temperature varying between 70.2°F (21.2°C) and 50.2°F (10.1°C).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's warm 76.8°F (24.9°C) to a pleasant 70.2°F (21.2°C). Mainesburg, during the nights of September, experiences an average temperature drop to a fresh 50.2°F (10.1°C).Humidity
The average relative humidity in September is 81%.Rainfall
In Mainesburg, in September, during 13.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 172.3 rainfall days, and 30.55" (776mm) of precipitation is accumulated.Snowfall
In Mainesburg, snow does not fall in June through September.Daylight
In Mainesburg, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun is at its strongest around midday, find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mainesburg, PA
- Average high temperature in September: 70.2°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 50.2°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in September
Mainesburg, PA
- Average pressure in September: 30.07"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Mainesburg, PA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Mainesburg, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in September
Mainesburg, PA
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in September
Mainesburg, PA
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in September
Mainesburg, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mainesburg, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mainesburg, PA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Mainesburg, PA
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in September
Mainesburg, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Mainesburg, PA
- Average cloud cover in September: 43
The months with the most cloud cover are January, February and December (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Mainesburg, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
