September weather forecastClarks Mills, NJ
September
Weather in September
The first month of the autumn, September, is still a warm month in Clarks Mills, New Jersey, with an average temperature fluctuating between 74.7°F (23.7°C) and 62.2°F (16.8°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's warm 81.1°F (27.3°C) to a still moderately hot 74.7°F (23.7°C). The average nighttime temperature lowers to an enjoyable 62.2°F (16.8°C) throughout September.Humidity
The average relative humidity in September in Clarks Mills is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 1.69" (43mm) of precipitation.Snowfall
In Clarks Mills, New Jersey, snow does not fall in May through September.Daylight
In September, the average length of the day in Clarks Mills, New Jersey, is 12h and 27min.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 6:40 pm EDT.
Sunshine
In Clarks Mills, the average sunshine in September is 9h.UV index
In Clarks Mills, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clarks Mills, NJ
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 62.2°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 (26.4°F).
Average pressure in September
Clarks Mills, 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
Clarks Mills, NJ
- Average wind speed in September: 7.4mph
The windiest months (with the highest average wind speed) are January and March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Clarks Mills, NJ
- Average humidity in September: 76%
The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are January, March, April, August and November (74%).
Average rainfall in September
Clarks Mills, NJ
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Clarks Mills, NJ
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (16.4 days).
The months with the least rainy days are January and November (9.8 days).
Average snowfall in September
Clarks Mills, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Clarks Mills, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clarks Mills, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Clarks Mills, NJ
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Clarks Mills, 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, March, November and December (UV index 2).
Average cloud cover in September
Clarks Mills, NJ
- Average cloud cover in September: 34
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Clarks Mills, 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).
