September weather forecastOsbornes Mills, NJ
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Osbornes Mills, New Jersey, with an average temperature ranging between min 64.4°F (18°C) and max 73.6°F (23.1°C).Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's 79.5°F (26.4°C) to a still moderately hot 73.6°F (23.1°C). The average temperature drops to an enjoyable 64.4°F (18°C) during the night in the month of September.Humidity
In Osbornes Mills, the average relative humidity in September is 76%.Rainfall
In Osbornes Mills, in September, during 13.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Osbornes Mills, New Jersey, during the entire year, the rain falls for 161.4 days and collects up to 32.64" (829mm) of precipitation.Snowfall
In Osbornes Mills, snow does not fall in May through September.Daylight
In Osbornes Mills, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Osbornes Mills, NJ
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in September
Osbornes 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
Osbornes Mills, NJ
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is January (12mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in September
Osbornes Mills, NJ
- Average humidity in September: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in September
Osbornes Mills, NJ
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Osbornes Mills, NJ
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Osbornes Mills, NJ
- Average snowfall in September: 0"
The months with the highest snowfall are January, March and December (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Osbornes Mills, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 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
Osbornes 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 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
Osbornes Mills, NJ
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Osbornes 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
Osbornes Mills, NJ
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Osbornes 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).





