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 signifies a minor drop in average high-temperature, transitioning from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). September's nights in Excelsior observe an average temperature of 53.6°F (12°C).Humidity
The average relative humidity in September in Excelsior is 74%.Rainfall
In Excelsior, Minnesota, during September, the rain falls for 9.9 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 103.9 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:50 pm. On the last day of September, in Excelsior, sunrise is at 7:11 am and sunset at 6:56 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Excelsior, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Excelsior?
What is the average humidity in September in Excelsior?
How many days does it rain in September in Excelsior?
When it does not snow in Excelsior?
Does it snow in Excelsior in September?
What is the average length of the day in September in Excelsior?
When are sunrise and sunset in September in Excelsior?
How many hours of sunshine does Excelsior have in September?
How high is the UV index in September in Excelsior?
Average temperature in September
Excelsior, MN
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Excelsior, 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
Excelsior, MN
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Excelsior, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April, May and October (71%).
Average rainfall in September
Excelsior, MN
- Average rainfall in September: 0.98"
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
Excelsior, MN
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Excelsior, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Excelsior, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Excelsior, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Excelsior, MN
- Average sunshine days in September: 17.4 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Excelsior, 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
Excelsior, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Excelsior, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Excelsior, Minnesota, USA
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