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 advent of September brings a slight shift in average high-temperature, moving from 82.8°F (28.2°C) in August to a still warm 77°F (25°C). Saint Louis Crossing throughout September, experiences an average nighttime temperature of 58.3°F (14.6°C).Humidity
In Saint Louis Crossing, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 14.1 days and accumulates 1.73" (44mm) of precipitation.Snowfall
In Saint Louis Crossing, snow does not fall in May through October.Daylight
In Saint Louis Crossing, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:13 pm. On the last day of September, in Saint Louis Crossing, sunrise is at 7:39 am and sunset at 7:27 pm EDT.
Sunshine
In September, the average sunshine in Saint Louis Crossing is 8.4h.UV index
In September, the average daily maximum UV index in Saint Louis Crossing is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are September temperatures in Saint Louis Crossing?
What is the average humidity in September in Saint Louis Crossing?
What is the driest month in Saint Louis Crossing?
How many days does it rain in September in Saint Louis Crossing?
When it does not snow in Saint Louis Crossing?
How many hours of daylight does Saint Louis Crossing have in September?
When is the sunrise / sunset in September in Saint Louis Crossing?
How long on average sun shines in September in Saint Louis Crossing?
What is the UV index intensity in September in Saint Louis Crossing?
Average temperature in September
Saint Louis Crossing, IN
- Average high temperature in September: 77°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 58.3°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 (22.5°F).
Average pressure in September
Saint Louis Crossing, 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
Saint Louis Crossing, IN
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Saint Louis Crossing, IN
- Average humidity in September: 76%
The months with the highest relative humidity are January, February, July and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Saint Louis Crossing, IN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Saint Louis Crossing, IN
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (9.4 days).
Average snowfall in September
Saint Louis Crossing, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Saint Louis Crossing, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 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 Louis Crossing, 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 Louis Crossing, IN
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in September
Saint Louis Crossing, 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
Saint Louis Crossing, IN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Saint Louis Crossing, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are July and December (5mi).
Saint Louis Crossing, Indiana, USA
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