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 marks a gentle change in average high-temperature, declining from August's moderately hot 77.2°F (25.1°C) to a pleasant 70.3°F (21.3°C). Nighttime temperature lowers to an average of 50°F (10°C) in September.Humidity
The average relative humidity in September is 81%.Rainfall
In Sylvania, in September, it is raining for 13.7 days, with typically 2.24" (57mm) of accumulated precipitation. In Sylvania, during the entire year, the rain falls for 171.9 days and collects up to 28.54" (725mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day 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 medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sylvania in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Sylvania?
Does it snow in September?
How many hours of daylight does Sylvania have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Sylvania have in September?
What is the UV index reading in September?
Average temperature in September
Sylvania, PA
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Sylvania, 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
Sylvania, PA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Sylvania, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Sylvania, PA
- Average rainfall in September: 2.24"
The wettest months (with the highest rainfall) are April and July (2.91").
The driest months (with the least rainfall) are January and November (1.77").
Average rainfall days in September
Sylvania, PA
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Sylvania, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sylvania, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sylvania, PA
- Average daylight in September: 12h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Sylvania, PA
- Average sunshine days in September: 14 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in September
Sylvania, 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
Sylvania, PA
- Average cloud cover in September: 44
The months with the most cloud cover are January, February and December (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Sylvania, 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).
Sylvania, Pennsylvania, USA
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