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
La Salle's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 78.4°F (25.8°C) to a pleasant 72.7°F (22.6°C). The average low-temperature during September nights is a fresh 53.6°F (12°C).Humidity
In La Salle, the average relative humidity in September is 74%.Rainfall
In La Salle, during September, the rain falls for 9.4 days and regularly aggregates up to 1.38" (35mm) of precipitation. In La Salle, during the entire year, the rain falls for 98.2 days and collects up to 12.91" (328mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In La Salle, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:42 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:00 pm CDT.
Sunshine
In La Salle, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in La Salle is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. To protect against the Sun's most potent rays, avoid direct exposure around midday. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in La Salle?
What is the average humidity in September in La Salle?
How many days does it rain in September in La Salle?
When it does not snow in La Salle?
Does it snow in La Salle in September?
How many hours of daylight does La Salle have in September?
When are sunrise and sunset in September in La Salle?
How many hours of sunshine does La Salle have in September?
How high is the UV index in September in La Salle?
Average temperature in September
La Salle, MN
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in September
La Salle, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
La Salle, MN
- Average wind speed in September: 8.6mph
The windiest months (with the highest average wind speed) are February and April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
La Salle, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are May and October (68%).
Average rainfall in September
La Salle, MN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
La Salle, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (14.8 days).
The month with the least rainy days is February (1.4 days).
Average snowfall in September
La Salle, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
La Salle, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
La Salle, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
La Salle, MN
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in September
La Salle, MN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in September
La Salle, MN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in September
La Salle, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
La Salle, Minnesota, USA
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