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
The arrival of September correlates with a minor temperature reduction, down from August's 79.3°F (26.3°C) to a still warm 73.4°F (23°C). During the month of September, Stonerville experiences a steady low-temperature average of 53.4°F (11.9°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Stonerville, in September, during 13.8 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. In Stonerville, during the entire year, the rain falls for 162.5 days and collects up to 24.76" (629mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Stonerville is 12h and 26min.On the first day of September, sunrise is at 6:46 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm EDT.
Sunshine
The average sunshine in September in Stonerville is 8.7h.UV index
In Stonerville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Stonerville?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Stonerville, PA
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Stonerville, PA
- 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
Stonerville, PA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Stonerville, PA
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in September
Stonerville, PA
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in September
Stonerville, PA
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Stonerville, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stonerville, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stonerville, PA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
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 August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Stonerville, PA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in September
Stonerville, PA
- Average UV index in September: 4
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, February, March, October, November and December (UV index 2).
Average cloud cover in September
Stonerville, PA
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Stonerville, 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).
Stonerville, Pennsylvania, USA
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