September weather forecastSwoyersville, PA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Swoyersville, Pennsylvania, with an average temperature fluctuating between 51.6°F (10.9°C) and 71.4°F (21.9°C).Temperature
In Swoyersville, entering September brings a subtle temperature decrement, reducing from August's moderately hot 78.4°F (25.8°C) to a pleasant 71.4°F (21.9°C). Swoyersville observes an average nighttime temperature of 51.6°F (10.9°C) during September.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.54" (39mm) 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 6:30 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:46 pm EDT.
Sunshine
In Swoyersville, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 during September translates into the following guidance:
Take necessary precautions - Protection from skin and eye injury is mandatory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Swoyersville, PA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Swoyersville, 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
Swoyersville, PA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Swoyersville, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in September
Swoyersville, PA
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Swoyersville, PA
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Swoyersville, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Swoyersville, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Swoyersville, PA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in September
Swoyersville, PA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Swoyersville, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Swoyersville, PA
- Average cloud cover in September: 41
The months with the most cloud cover are January, February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Swoyersville, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
