September weather forecastSkillman, NJ
September
Weather in September
September, the first month of the autumn in Skillman, is still a warm month, with an average temperature ranging between min 58.1°F (14.5°C) and max 75.7°F (24.3°C).Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a warm 82.4°F (28°C) to a still moderately hot 75.7°F (24.3°C). Skillman throughout September, records an average low-temperature of 58.1°F (14.5°C).Humidity
In Skillman, the average relative humidity in September is 77%.Rainfall
The month with the least rainfall in Skillman, New Jersey, is September, when the rain falls for 8.5 days and typically collects 0.35" (9mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September in Skillman is 12h and 27min.On the first day of September, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm EDT.
Sunshine
In Skillman, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Skillman, NJ
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Skillman, 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
Skillman, NJ
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Skillman, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Skillman, NJ
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in September
Skillman, NJ
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (5.5 days).
Average snowfall in September
Skillman, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Skillman, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Skillman, 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 18min).
- Average sunshine in September: 8h and 36min
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 42min).
Average sunshine days in September
Skillman, NJ
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in September
Skillman, NJ
- Average UV index in September: 4
The months with the highest UV index are May, 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
Skillman, NJ
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Skillman, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





