Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A moderate decline in average high-temperatures is noted in September, moving from a moderately hot 81.9°F (27.7°C) in August to a still warm 74.7°F (23.7°C). During the month of September, the temperature generally drops to a low average of 56.1°F (13.4°C).Humidity
In September, the average relative humidity is 78%.Rainfall
The month with the least rainfall in Califon, New Jersey, is September, when the rain falls for 12.3 days and typically collects 1.89" (48mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September in Califon, sunrise is at 6:27 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm EDT.
Sunshine
In September, the average sunshine in Califon, New Jersey, is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Guard yourself - Avoiding sunburn is suggested. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Califon?
What is the average humidity in September in Califon?
What is the driest month in Califon?
How many days does it rain in September in Califon?
When it does not snow in Califon?
Does it snow in Califon in September?
How many hours of daylight does Califon have in September?
When are sunrise and sunset in September in Califon?
How many hours of sunshine does Califon have in September?
What is the UV index reading in September in Califon?
Average temperature in September
Califon, NJ
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Califon, 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
Califon, NJ
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Califon, NJ
- Average humidity in September: 78%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Califon, NJ
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Califon, NJ
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Califon, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Califon, NJ
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Califon, NJ
- Average daylight in September: 12h and 3min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Califon, NJ
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Califon, 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
Califon, NJ
- Average cloud cover in September: 39
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
Califon, NJ
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
Califon, New Jersey, USA
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