September weather forecast
Cassville, NJ

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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.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Cassville in September?

An average high-temperature, in September, in Cassville, is 74.7°F (23.7°C) and the average low-temperature is 62.1°F (16.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

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.

How much does it rain in September?

In September, the rain falls for 9.5 days. Throughout September, 0.55" (14mm) of precipitation is accumulated.

When it does not snow?

In Cassville, snow does not fall in April through October.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, 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.

How many hours of sunshine does Cassville have in September?

In Cassville, the average sunshine duration in September is 8.8h.

What is the UV index reading in September?

In Cassville, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cassville, NJ

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Cassville, NJ
  • 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 5min

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 - 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 - 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 - 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 - 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).

Cassville, New Jersey, USA

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