September weather forecast
Chaska, MN

Weather in September

The first month of the autumn, September, is also an agreeable month in Chaska, Minnesota, with an average temperature varying between 53.4°F (11.9°C) and 71.4°F (21.9°C).

Temperature

In Chaska, Minnesota, the average high-temperature in September slightly decreases from a warm 78.4°F (25.8°C) in August to an agreeable 71.4°F (21.9°C). In September, in Chaska, the average low-temperature is 53.4°F (11.9°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

In Chaska, in September, during 9.1 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, in Chaska, there are 97.7 rainfall days, and 9.61" (244mm) of precipitation is accumulated.

Snowfall

In Chaska, snow does not fall in May through September.

Daylight

In Chaska, the average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 6:36 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:57 pm CDT.

Sunshine

The average sunshine in September in Chaska, Minnesota, is 8.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Chaska?

In September, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 53.4°F (11.9°C). in July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the average humidity in September in Chaska?

The average relative humidity in September in Chaska is 74%.

How many days does it rain in September in Chaska?

In September, in Chaska, Minnesota, the rain falls for 9.1 days. Throughout September, 0.75" (19mm) of precipitation is accumulated.

When it does not snow in Chaska?

May through September are months without snowfall.

Does it snow in Chaska in September?

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

How many hours of daylight does Chaska have in September?

In September, the average day length is 12h and 31min.

What time are sunrise and sunset in September in Chaska?

In September, on the first day of the month, sunrise is at 6:36 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:57 pm CDT.

How many hours of sunshine does Chaska have in September?

The average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Chaska?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Chaska, MN

Average temperature in September - Chaska, MN
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (20.5°F).

  • Average low temperature in September: 53.4°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 (7.7°F).

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Average pressure in September
Chaska, MN

Average pressure in September - Chaska, 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).

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Average wind speed in September
Chaska, MN

Average wind speed in September - Chaska, MN
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in September
Chaska, MN

Average humidity in September - Chaska, 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 and October (71%).

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Average rainfall in September
Chaska, MN

Average rainfall in September - Chaska, MN
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is June (1.57").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in September
Chaska, MN

Average rainfall days in September - Chaska, MN
  • Average rainfall days in September: 9.1 days

The month with the highest number of rainy days is June (14.4 days).
The month with the least rainy days is February (1.4 days).

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Average snowfall in September
Chaska, MN

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

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Chaska, MN

Average snowfall days in September - Chaska, MN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.8 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
Chaska, MN

Average daylight in September / Average sunshine in September - Chaska, MN
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 32min).
The month with the shortest days is December (Average daylight: 8h and 52min).

  • Average sunshine in September: 8h and 48min

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).

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Average sunshine days in September
Chaska, MN

Average sunshine days in September - Chaska, MN
  • Average sunshine days in September: 18.6 days

The months with the most sunshine days are October, November and December (21.5 days).
The month with the least sunshine days is June (13.3 days).

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Average UV index in September
Chaska, MN

Average UV index in September - Chaska, 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
Chaska, MN

Average cloud cover in September - Chaska, MN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Chaska, MN

Average visibility in September - Chaska, 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).

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