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 average high-temperature is a still warm 75.4°F (24.1°C) in September, hardly different from the 79.9°F (26.6°C) recorded in August. In the month of September, Boswell experiences an average low-temperature of 57°F (13.9°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In September, the rain falls for 11 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 141.9 rainfall days, and 18.07" (459mm) of precipitation is accumulated.Snowfall
In Boswell, snow does not fall in May through October.Daylight
In Boswell, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:17 am and sunset at 8:21 pm. On the last day of September, sunrise is at 7:45 am and sunset at 7:32 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Make use of precautions - It is urged to ward off sun damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. 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 average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Boswell have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Boswell have in September?
How high is the UV index in September?
Average temperature in September
Boswell, IN
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in September
Boswell, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Boswell, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Boswell, IN
- Average humidity in September: 78%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Boswell, IN
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in September
Boswell, IN
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Boswell, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Boswell, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boswell, 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: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Boswell, IN
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Boswell, IN
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Boswell, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Boswell, 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).
Boswell, Indiana, USA
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