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
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 78.3°F (25.7°C) to an agreeable 72.5°F (22.5°C). During the month of September, Mankato experiences a steady low-temperature average of 52.9°F (11.6°C).Humidity
In Mankato, the average relative humidity in September is 75%.Rainfall
In Mankato, in September, it is raining for 11.5 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 124.9 rainfall days, and 23.11" (587mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Mankato, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:51 pm. On the last day of September, in Mankato, sunrise is at 7:13 am and sunset at 6:58 pm CDT.
Sunshine
In Mankato, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. To guard against the harmful effects of the Sun, minimize exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September in Mankato?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Mankato have in September?
How high is the UV index in September?
Average temperature in September
Mankato, MN
- Average high temperature in September: 72.5°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 (21.2°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Mankato, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Mankato, MN
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Mankato, MN
- Average humidity in September: 75%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (70%).
Average rainfall in September
Mankato, MN
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Mankato, MN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in September
Mankato, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mankato, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mankato, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
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 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Mankato, MN
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Mankato, 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 January, February, November and December (UV index 1).
Average cloud cover in September
Mankato, MN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Mankato, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Mankato, Minnesota, USA
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