September weather forecastCassville, NJ
September
Weather in September
September, the first month of the autumn in Cassville, is still a warm month, with an average temperature fluctuating between 62.1°F (16.7°C) and 74.7°F (23.7°C).Temperature
In the transition to September, Cassville observes a minor drop in the average high-temperature, shifting from a warm 81.1°F (27.3°C) in August to a still moderately hot 74.7°F (23.7°C). In Cassville, the average temperature during the nights of September drops to an enjoyable 62.1°F (16.7°C).Humidity
In Cassville, the average relative humidity in September is 78%.Rainfall
January and September are months with the least rain when the rain falls for 9.5 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
In Cassville, snow does not fall in April through October.Daylight
In Cassville, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:25 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:41 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cassville, NJ
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 62.1°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Cassville, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Cassville, NJ
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Cassville, NJ
- Average humidity in September: 78%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Cassville, NJ
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is July (1.38").
The driest months (with the least rainfall) are January and September (0.55").
Average rainfall days in September
Cassville, NJ
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Cassville, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cassville, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cassville, NJ
- 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Cassville, NJ
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in September
Cassville, NJ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Cassville, NJ
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in September
Cassville, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





