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
Sleepy Eye in September experiences a gentle temperature dip, with average high-temperatures reducing from a warm 78.8°F (26°C) in August to an agreeable 72.5°F (22.5°C). Throughout the nights in September, Sleepy Eye experiences an average low-temperature of 52.9°F (11.6°C).Humidity
The average relative humidity in September is 73%.Rainfall
In Sleepy Eye, during September, the rain falls for 9.4 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Sleepy Eye, during the entire year, the rain falls for 99.2 days and collects up to 12.13" (308mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September in Sleepy Eye, Minnesota, sunrise is at 6:42 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:00 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In Sleepy Eye, Minnesota, 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 ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Sleepy Eye?
When are sunrise and sunset in September?
How many hours of sunshine does Sleepy Eye have in September?
How high is the UV index in September?
Average temperature in September
Sleepy Eye, 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 (20.7°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in September
Sleepy Eye, 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
Sleepy Eye, MN
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in September
Sleepy Eye, MN
- Average humidity in September: 73%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are May and October (68%).
Average rainfall in September
Sleepy Eye, MN
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (2.01").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Sleepy Eye, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Sleepy Eye, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Sleepy Eye, 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
Sleepy Eye, 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: 9h and 1min
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 42min).
Average sunshine days in September
Sleepy Eye, MN
- Average sunshine days in September: 19 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Sleepy Eye, 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 and November (UV index 1).
Average cloud cover in September
Sleepy Eye, MN
- Average cloud cover in September: 31
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 31).
Average visibility in September
Sleepy Eye, 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).
Sleepy Eye, Minnesota, USA
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