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
Jeffersonville's progression into September involves a gentle drop in the average high-temperature, from a warm 76.1°F (24.5°C) in August to an agreeable 69.3°F (20.7°C). In Jeffersonville, the average temperature during the nights of September drops to a chilly 49.1°F (9.5°C).Humidity
The average relative humidity in September is 81%.Rainfall
The month with the least rainfall in Jeffersonville is September, when the rain falls for 13.4 days and typically collects 2.52" (64mm) of precipitation.Snowfall
In Jeffersonville, New York, snow does not fall in June through September.Daylight
In Jeffersonville, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:26 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:42 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Jeffersonville?
What is the average humidity in September in Jeffersonville?
What is the driest month in Jeffersonville?
How much does it rain in Jeffersonville in September?
When it does not snow in Jeffersonville?
Does it snow in Jeffersonville in September?
How many hours of daylight does Jeffersonville have in September?
What time are sunrise and sunset in September in Jeffersonville?
How many hours of sunshine does Jeffersonville have in September?
What is the UV index intensity in September in Jeffersonville?
Average temperature in September
Jeffersonville, NY
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Jeffersonville, NY
- 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
Jeffersonville, NY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Jeffersonville, NY
- Average humidity in September: 81%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Jeffersonville, NY
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in September
Jeffersonville, NY
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Jeffersonville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Jeffersonville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jeffersonville, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in September
Jeffersonville, NY
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Jeffersonville, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in September
Jeffersonville, NY
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in September
Jeffersonville, NY
- Average visibility in September: 4mi
The months with the highest visibility are April, June and July (5mi).
The months with the lowest visibility are January, February, March, May, August, September, October, November and December (4mi).
Jeffersonville, New York, USA
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