September weather forecastMillville, NJ
September
Weather in September
September, the first month of the autumn in Millville, is still a warm month, with an average temperature varying between 62.8°F (17.1°C) and 76.1°F (24.5°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a warm 82°F (27.8°C) to a still moderately hot 76.1°F (24.5°C). Millville reports a consistent average low-temperature of 62.8°F (17.1°C) throughout September nights.Humidity
May, June and September, with an average relative humidity of 79%, are the most humid months.Rainfall
In Millville, New Jersey, during September, the rain falls for 11.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 152.3 rainfall days, and 27.01" (686mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Millville, New Jersey, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:29 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Warding off sunburn is urged. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Millville, NJ
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in September
Millville, NJ
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Millville, NJ
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Millville, NJ
- Average humidity in September: 79%
The months with the highest relative humidity are May, June and September (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Millville, NJ
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in September
Millville, NJ
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Millville, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.48").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Millville, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Millville, NJ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Millville, NJ
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and July (13.1 days).
Average UV index in September
Millville, NJ
- Average UV index in September: 5
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 and December (UV index 2).
Average cloud cover in September
Millville, NJ
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Millville, 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).
