September weather forecast
Cottonwood, MN

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Weather in September

September, the first month of the autumn in Cottonwood, is also an agreeable month, with an average temperature varying between 72.5°F (22.5°C) and 53.2°F (11.8°C).

Temperature

September ushers in a minor alteration in Cottonwood's climate, with the average high-temperature moving from August's warm 79.7°F (26.5°C) to an agreeable 72.5°F (22.5°C). During the month of September, Cottonwood experiences a steady low-temperature average of 53.2°F (11.8°C).

Humidity

In September, the average relative humidity in Cottonwood is 70%.

Rainfall

In Cottonwood, Minnesota, in September, during 10.7 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, in Cottonwood, there are 121.2 rainfall days, and 23.35" (593mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Cottonwood, Minnesota, is 12h and 30min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:58 pm. On the last day of September, in Cottonwood, sunrise is at 7:20 am and sunset at 7:04 pm CDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

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 rays for the average person.
Note: In September, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the usual temperature for Cottonwood in September?

Cottonwood in September has an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 53.2°F (11.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in September in Cottonwood?

In September, the average relative humidity in Cottonwood is 70%.

How much does it rain in Cottonwood in September?

In Cottonwood, during September, the rain falls for 10.7 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow in Cottonwood?

June through September are months without snowfall in Cottonwood.

Does it snow in Cottonwood in September?

In Cottonwood, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Cottonwood have in September?

The average day length in September in Cottonwood is 12h and 30min.

When is the sunrise / sunset in September in Cottonwood?

In September, on the first day of the month, sunrise is at 6:46 am and sunset at 7:58 pm. On the last day of the month, in Cottonwood, Minnesota, sunrise is at 7:20 am and sunset at 7:04 pm CDT.

How many hours of sunshine does Cottonwood have in September?

In September, the average sunshine duration in Cottonwood, Minnesota, is 9.1h.

How high is the UV index in September in Cottonwood?

The average daily maximum UV index in September in Cottonwood is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cottonwood, MN

Average temperature in September - Cottonwood, MN
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in September: 53.2°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 (7.5°F).

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Average pressure in September
Cottonwood, MN

Average pressure in September - Cottonwood, MN
  • Average pressure in September: 29.98"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in September
Cottonwood, MN

Average wind speed in September - Cottonwood, MN
  • Average wind speed in September: 9.2mph

The windiest months (with the highest average wind speed) are February, April and November (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in September
Cottonwood, MN

Average humidity in September - Cottonwood, MN
  • Average humidity in September: 70%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Cottonwood, MN

Average rainfall in September - Cottonwood, MN
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
Cottonwood, MN

Average rainfall days in September - Cottonwood, MN
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is February (1.8 days).

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Average snowfall in September
Cottonwood, MN

Average snowfall in September - Cottonwood, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Cottonwood, MN

Average snowfall days in September - Cottonwood, 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).

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Average daylight in September /
Average sunshine in September
Cottonwood, MN

Average daylight in September / Average sunshine in September - Cottonwood, 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 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in September
Cottonwood, MN

Average sunshine days in September - Cottonwood, MN
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (8 days).

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Average UV index in September
Cottonwood, MN

Average UV index in September - Cottonwood, 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).

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Average cloud cover in September
Cottonwood, MN

Average cloud cover in September - Cottonwood, MN
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Cottonwood, MN

Average visibility in September - Cottonwood, 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).

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Cottonwood, Minnesota, USA

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