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 beginning of September reveals an average high-temperature of a still warm 74.3°F (23.5°C), showing minimal deviation from the previous month. Fairmount experiences a nighttime temperature average of 56.5°F (13.6°C) during September.Humidity
The average relative humidity in September is 79%.Rainfall
In Fairmount, Indiana, in September, during 10.2 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 123.4 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
In Fairmount, snow does not fall in May through September.Daylight
In Fairmount, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:38 am and sunset at 7:25 pm EDT.
Sunshine
In Fairmount, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Fairmount in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Fairmount have in September?
How high is the UV index in September?
Average temperature in September
Fairmount, IN
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (81.1°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 (19.8°F).
Average pressure in September
Fairmount, 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
Fairmount, IN
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Fairmount, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Fairmount, IN
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in September
Fairmount, IN
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Fairmount, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Fairmount, 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
Fairmount, IN
- Average daylight in September: 12h and 2min
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 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: 3h and 30min).
Average sunshine days in September
Fairmount, IN
- Average sunshine days in September: 18 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in September
Fairmount, IN
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Fairmount, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are June, July and August (Cloud cover 34).
Average visibility in September
Fairmount, 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).
Fairmount, Indiana, USA
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