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 onset of September in Andover brings a small shift in high-temperatures, falling from a warm 78.1°F (25.6°C) in August to an agreeable 70.3°F (21.3°C). Throughout the month of September, Andover witnesses an average low-temperature of 52.5°F (11.4°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Andover, during September, the rain falls for 11.9 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 119.8 rainfall days, and 21.3" (541mm) 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 September, sunrise is at 6:35 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:54 pm CDT.
Sunshine
In Andover, Minnesota, the average sunshine in September is 8.8h.UV index
In Andover, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What are the temperatures in Andover in September?
What is the average humidity in September in Andover?
How many days does it rain in September in Andover?
When it does not snow in Andover?
Does it snow in Andover in September?
How many hours of daylight does Andover have in September?
When is the sunrise / sunset in September in Andover?
How long on average sun shines in September in Andover?
What is the UV index intensity in September in Andover?
Average temperature in September
Andover, MN
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in September
Andover, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Andover, MN
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Andover, MN
- Average humidity in September: 75%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Andover, MN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
Andover, MN
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Andover, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Andover, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Andover, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- 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 6min).
Average sunshine days in September
Andover, MN
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (18.6 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Andover, 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
Andover, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Andover, 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).
Andover, Minnesota, USA
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