September weather forecastBelle Mead, NJ
September
Weather in September
September, the first month of the autumn in Belle Mead, is still a warm month, with an average temperature fluctuating between 58.1°F (14.5°C) and 75.4°F (24.1°C).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from 82.6°F (28.1°C) in August to a still warm 75.4°F (24.1°C). In September, Belle Mead's temperature tends to fall to an average low of 58.1°F (14.5°C) during the night.Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 9 days and accumulates 0.51" (13mm) of precipitation.Snowfall
June through October are months without snowfall in Belle Mead.Daylight
In Belle Mead, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm EDT.
Sunshine
In September, the average sunshine in Belle Mead is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Belle Mead, NJ
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Belle Mead, NJ
- Average pressure in September: 30.06"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
Belle Mead, 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
Belle Mead, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Belle Mead, NJ
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in September
Belle Mead, NJ
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Belle Mead, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Belle Mead, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Belle Mead, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Belle Mead, NJ
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is May (14.8 days).
Average UV index in September
Belle Mead, NJ
- Average UV index in September: 4
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
Belle Mead, NJ
- Average cloud cover in September: 40
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Belle Mead, NJ
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
