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
September is marked by an average high-temperature of a still warm 78.6°F (25.9°C), almost identical to the preceding month. Vincennes records an average low of 60.1°F (15.6°C) throughout the nights in September.Humidity
The average relative humidity in September in Vincennes is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 7 days and accumulates 0.28" (7mm) of precipitation.Snowfall
In Vincennes, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Vincennes, Indiana, sunrise is at 7:19 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 7:33 pm EDT.
Sunshine
The average sunshine in September in Vincennes is 8.6h.UV index
In September, the average daily maximum UV index in Vincennes is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Vincennes?
What is the average humidity in September in Vincennes?
What is the driest month in Vincennes?
How much does it rain in Vincennes in September?
When it does not snow in Vincennes?
What is the average length of the day in September in Vincennes?
When are sunrise and sunset in September in Vincennes?
How long on average sun shines in September in Vincennes?
How high is the UV index in September in Vincennes?
Average temperature in September
Vincennes, IN
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
Vincennes, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Vincennes, IN
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in September
Vincennes, IN
- Average humidity in September: 74%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Vincennes, IN
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is April (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Vincennes, IN
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in September
Vincennes, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Vincennes, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Vincennes, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in September
Vincennes, IN
- Average sunshine days in September: 20.7 days
The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is May (16.9 days).
Average UV index in September
Vincennes, IN
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Vincennes, IN
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in September
Vincennes, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Vincennes, Indiana, USA
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