September weather forecastJonesville, IN
September
Weather in September
September, the first month of the autumn in Jonesville, is also a moderately hot month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 78.1°F (25.6°C).Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 83.8°F (28.8°C) in August to a still moderately hot 78.1°F (25.6°C). Throughout the September nights, Jonesville encounters a low-temperature of 58.5°F (14.7°C).Humidity
The average relative humidity in September in Jonesville is 76%.Rainfall
The month with the least rainfall in Jonesville is September, when the rain falls for 12.9 days and typically collects 1.85" (47mm) of precipitation.Snowfall
May through September are months without snowfall in Jonesville.Daylight
In Jonesville, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:13 pm. On the last day of September, in Jonesville, sunrise is at 7:39 am and sunset at 7:27 pm EDT.
Sunshine
In Jonesville, the average sunshine in September is 8.3h.UV index
In Jonesville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against sun damage is advised. It's recommended to limit sun exposure when its radiation is at its peak during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jonesville, IN
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Jonesville, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Jonesville, IN
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Jonesville, IN
- Average humidity in September: 76%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Jonesville, IN
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Jonesville, IN
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in September
Jonesville, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Jonesville, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 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
Jonesville, IN
- 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 30min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in September
Jonesville, IN
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Jonesville, IN
- 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, November and December (UV index 2).
Average cloud cover in September
Jonesville, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Jonesville, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).





