September weather forecastJasper, IN
September weather for Jasper, Indiana: The first month of the autumn, September, is still a warm month in Jasper, Indiana, with an average temperature varying between 60.1°F (15.6°C) and 79.3°F (26.3°C). September is the first month it typically snows in Jasper, Indiana.
September
Weather in September
The first month of the autumn, September, is still a warm month in Jasper, Indiana, with an average temperature varying between 60.1°F (15.6°C) and 79.3°F (26.3°C).Temperature
Jasper experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 84.7°F (29.3°C) in August to a still moderately hot 79.3°F (26.3°C). Jasper records an average low-temperature of 60.1°F (15.6°C) throughout the month of September.Humidity
The average relative humidity in September in Jasper is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.89" (48mm) of precipitation.Snowfall
January through April, September through December are months with snowfall in Jasper. September is the first month it typically snows in Jasper. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Jasper, during the entire year, snow falls for 25.4 days and aggregates up to 7.8" (198mm) of snow.Daylight
In September, the average length of the day in Jasper, Indiana, is 12h and 25min.On the first day of the month, sunrise is at 7:17 am and sunset at 8:17 pm. On the last day of September, sunrise is at 7:43 am and sunset at 7:31 pm EDT.
Sunshine
The average sunshine in September in Jasper is 8.4h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jasper, IN
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Jasper, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Jasper, IN
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Jasper, IN
- Average humidity in September: 74%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Jasper, IN
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (4.84").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Jasper, IN
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in September
Jasper, IN
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Jasper, IN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Jasper, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in September
Jasper, IN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in September
Jasper, 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
Jasper, IN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Jasper, IN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, May, July and August (5mi).
