September weather forecastGreentown, IN
September
Weather in September
September, the first month of the autumn in Greentown, is also a moderately hot month, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.5°F (13.6°C).Temperature
Greentown commences September with an average high-temperature of a still moderately hot 74.8°F (23.8°C), maintaining a close resemblance to the previous month. Greentown witnesses an average low-temperature of 56.5°F (13.6°C) throughout the month of September.Humidity
The average relative humidity in September in Greentown is 78%.Rainfall
In Greentown, during September, the rain falls for 9.8 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Greentown, during the entire year, the rain falls for 127.3 days and collects up to 14.37" (365mm) of precipitation.Snowfall
In Greentown, snow does not fall in May through September.Daylight
The average length of the day in September in Greentown is 12h and 27min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:15 pm. On the last day of September, in Greentown, sunrise is at 7:40 am and sunset at 7:27 pm EDT.
Sunshine
In September, the average sunshine in Greentown is 8h.UV index
In Greentown, Indiana, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Greentown, IN
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Greentown, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Greentown, IN
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Greentown, IN
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Greentown, IN
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Greentown, IN
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Greentown, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Greentown, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greentown, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Greentown, IN
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Greentown, IN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Greentown, IN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June, July and August (Cloud cover 34).
Average visibility in September
Greentown, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





