Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September in Franklin, Indiana, corresponds with a light shift in temperature, down from a warm 81.5°F (27.5°C) in August to a still moderately hot 76.1°F (24.5°C). Franklin's temperature tends to fall to an average low of 58.1°F (14.5°C) during the nights of September.Humidity
In Franklin, Indiana, the average relative humidity in September is 77%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 156.3 rainfall days, and 30.16" (766mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Franklin.Daylight
In Franklin, the average length of the day in September is 12h and 26min.On the first day of September in Franklin, sunrise is at 7:13 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:27 pm EDT.
Sunshine
In Franklin, the average sunshine in September is 8.2h.UV index
In Franklin, 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 radiation for average individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Franklin in September?
What is the average humidity in September in Franklin?
How much does it rain in Franklin in September?
When it does not snow in Franklin?
Does it snow in Franklin in September?
What is the average length of the day in September in Franklin?
When is the sunrise / sunset in September in Franklin?
How long on average sun shines in September in Franklin?
How high is the UV index in September in Franklin?
Average temperature in September
Franklin, IN
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Franklin, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Franklin, IN
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Franklin, IN
- Average humidity in September: 77%
The months with the highest relative humidity are July and December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Franklin, IN
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in September
Franklin, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Franklin, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Franklin, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Franklin, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Franklin, IN
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Franklin, IN
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (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
Franklin, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Franklin, 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).
Franklin, Indiana, USA
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