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 brings a minor shift in the average high-temperature, adjusting from a moderately hot 82.6°F (28.1°C) in August to a still warm 76.8°F (24.9°C). During September, Saint Leon experiences a consistent low-temperature average of 58.5°F (14.7°C).Humidity
September and October, with an average relative humidity of 75%, are the least humid months in Saint Leon.Rainfall
September is the month with the least rainfall in Saint Leon, Indiana. Rain falls for 12.5 days and accumulates 1.38" (35mm) of precipitation.Snowfall
May through September are months without snowfall in Saint Leon.Daylight
In Saint Leon, Indiana, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September in Saint Leon is 8.4h.UV index
In Saint Leon, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What are the temperatures in Saint Leon in September?
What is the least humid month in Saint Leon?
What is the average humidity in September in Saint Leon?
What is the driest month in Saint Leon?
How much does it rain in Saint Leon in September?
When it does not snow in Saint Leon?
Does it snow in Saint Leon in September?
What is the average length of the day in September in Saint Leon?
What time are sunrise and sunset in September in Saint Leon?
How long on average sun shines in September in Saint Leon?
How high is the UV index in September in Saint Leon?
Average temperature in September
Saint Leon, IN
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Saint Leon, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Saint Leon, IN
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Saint Leon, IN
- Average humidity in September: 75%
The month with the highest relative humidity is December (82%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in September
Saint Leon, IN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Saint Leon, IN
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Saint Leon, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Saint Leon, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Leon, 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 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Saint Leon, IN
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Saint Leon, IN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Saint Leon, IN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Saint Leon, 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).
Saint Leon, Indiana, USA
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