September weather forecastFort Ritner, IN
September
Weather in September
The first month of the autumn, September, is still a warm month in Fort Ritner, Indiana, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 78.6°F (25.9°C).Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 84.7°F (29.3°C) in August to a still warm 78.6°F (25.9°C). Fort Ritner observes an average low-temperature of 58.8°F (14.9°C) during September.Humidity
In Fort Ritner, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 1.73" (44mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Fort Ritner, sunrise is at 7:14 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:28 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in September transforms into this advice:
Ensure safety - Recommendations to avert sunburn are presented. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fort Ritner, IN
- Average high temperature in September: 78.6°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 (37.2°F).
- Average low temperature in September: 58.8°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 (24.1°F).
Average pressure in September
Fort Ritner, 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
Fort Ritner, IN
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January, February and April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Fort Ritner, IN
- Average humidity in September: 76%
The months with the highest relative humidity are February, May and December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Fort Ritner, IN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Fort Ritner, IN
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in September
Fort Ritner, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Fort Ritner, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 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
Fort Ritner, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in September
Fort Ritner, IN
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in September
Fort Ritner, 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
Fort Ritner, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Fort Ritner, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
