September weather forecastWyomissing, PA
September
Weather in September
September, the first month of the autumn in Wyomissing, is also a moderately hot month, with an average temperature ranging between max 74.5°F (23.6°C) and min 55.8°F (13.2°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a warm 80.6°F (27°C) to a still moderately hot 74.5°F (23.6°C). An average nighttime temperature of 55.8°F (13.2°C) is witnessed throughout September.Humidity
The average relative humidity in September is 79%.Rainfall
In Wyomissing, Pennsylvania, during September, the rain falls for 12.2 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 155.7 rainfall days, and 30.83" (783mm) of precipitation is accumulated.Snowfall
In Wyomissing, snow does not fall in June through September.Daylight
In Wyomissing, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine in Wyomissing is 8.8h.UV index
In Wyomissing, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 4 in September translates into this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wyomissing, PA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Wyomissing, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Wyomissing, PA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Wyomissing, PA
- Average humidity in September: 79%
The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Wyomissing, PA
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is February (2.05").
Average rainfall days in September
Wyomissing, PA
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Wyomissing, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wyomissing, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wyomissing, PA
- Average daylight in September: 12h and 24min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Wyomissing, PA
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Wyomissing, PA
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Wyomissing, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Wyomissing, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
