September weather forecastGranger, IN
September
Weather in September
September, the first month of the autumn in Granger, is still a pleasant month, with an average temperature varying between 55.2°F (12.9°C) and 72.7°F (22.6°C).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 78.3°F (25.7°C) in August to a pleasant 72.7°F (22.6°C). Granger experiences a consistent average temperature of 55.2°F (12.9°C) throughout the nights in September.Humidity
In September, the average relative humidity is 79%.Rainfall
In Granger, in September, during 13.9 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Granger, during the entire year, the rain falls for 163.5 days and collects up to 26.54" (674mm) of precipitation.Snowfall
In Granger, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:17 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:27 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Granger, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Granger, IN
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Granger, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Granger, IN
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Granger, IN
- Average humidity in September: 79%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Granger, IN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in September
Granger, IN
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Granger, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Granger, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Granger, IN
- Average daylight in September: 12h and 30min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Granger, IN
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (7.8 days).
Average UV index in September
Granger, IN
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Granger, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Granger, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).





