September weather forecastTri-Lakes, IN
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Tri-Lakes, Indiana, with an average temperature varying between 55.2°F (12.9°C) and 73°F (22.8°C).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a moderately hot 78.4°F (25.8°C) in August to an agreeable 73°F (22.8°C). During September, the average low-temperature is a fresh 55.2°F (12.9°C).Humidity
In Tri-Lakes, the average relative humidity in September is 80%.Rainfall
In Tri-Lakes, during September, the rain falls for 13.8 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Tri-Lakes, during the entire year, the rain falls for 168 days and collects up to 29.17" (741mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:08 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Tri-Lakes, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. 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
Tri-Lakes, IN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Tri-Lakes, IN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Tri-Lakes, IN
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Tri-Lakes, IN
- Average humidity in September: 80%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Tri-Lakes, IN
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is April (3.74").
The driest month (with the least rainfall) is December (1.69").
Average rainfall days in September
Tri-Lakes, IN
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in September
Tri-Lakes, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Tri-Lakes, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tri-Lakes, IN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Tri-Lakes, IN
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in September
Tri-Lakes, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Tri-Lakes, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Tri-Lakes, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
