September weather forecast
Saint Michael, MN

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Weather in September

September, the first month of the autumn in Saint Michael, is also an agreeable month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 52.7°F (11.5°C).

Temperature

With the commencement of September, Saint Michael records a moderate temperature decline, with the average high easing from August's warm 78.1°F (25.6°C) to a pleasant 70.3°F (21.3°C). Saint Michael records an average nighttime low of 52.7°F (11.5°C) in September.

Humidity

The average relative humidity in September in Saint Michael is 75%.

Rainfall

In Saint Michael, Minnesota, during September, the rain falls for 11.3 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, in Saint Michael, there are 118.9 rainfall days, and 20.75" (527mm) of precipitation is accumulated.

Snowfall

In Saint Michael, snow does not fall in June through September.

Daylight

In Saint Michael, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:56 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in September in Saint Michael 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: An average UV index of 4 in September transforms into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the average September temperature in Saint Michael?

An average high-temperature, in September, in Saint Michael, is 70.3°F (21.3°C) and the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in September in Saint Michael?

In Saint Michael, Minnesota, the average relative humidity in September is 75%.

How much does it rain in Saint Michael in September?

In Saint Michael, in September, during 11.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow in Saint Michael?

June through September are months without snowfall in Saint Michael, Minnesota.

Does it snow in Saint Michael in September?

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

What is the average length of the day in September in Saint Michael?

The average day length in September in Saint Michael, Minnesota, is 12h and 31min.

When are sunrise and sunset in September in Saint Michael?

On the first day of September in Saint Michael, sunrise is at 6:37 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:56 pm CDT.

How many hours of sunshine does Saint Michael have in September?

In September, the average sunshine duration in Saint Michael, Minnesota, is 8.8h.

What is the UV index reading in September in Saint Michael?

In September, the average daily maximum UV index in Saint Michael, Minnesota, is 4. A UV Index reading 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Saint Michael, MN

Average temperature in September - Saint Michael, 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: 52.7°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 (6.8°F).

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Average pressure in September
Saint Michael, MN

Average pressure in September - Saint Michael, MN
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is 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
Saint Michael, MN

Average wind speed in September - Saint Michael, MN
  • Average wind speed in September: 7.9mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in September
Saint Michael, MN

Average humidity in September - Saint Michael, 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 (70%).

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Average rainfall in September
Saint Michael, MN

Average rainfall in September - Saint Michael, MN
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in September
Saint Michael, MN

Average rainfall days in September - Saint Michael, MN
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is June (16.2 days).
The month with the least rainy days is January (2.5 days).

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Average snowfall in September
Saint Michael, MN

Average snowfall in September - Saint Michael, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Saint Michael, MN

Average snowfall days in September - Saint Michael, MN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.9 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
Saint Michael, MN

Average daylight in September / Average sunshine in September - Saint Michael, 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 12min).

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Average sunshine days in September
Saint Michael, MN

Average sunshine days in September - Saint Michael, MN
  • Average sunshine days in September: 16.5 days

The months with the most sunshine days are January and October (18.4 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in September
Saint Michael, MN

Average UV index in September - Saint Michael, 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
Saint Michael, MN

Average cloud cover in September - Saint Michael, 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 July (Cloud cover 30).

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Average visibility in September
Saint Michael, MN

Average visibility in September - Saint Michael, 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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Saint Michael, Minnesota, USA

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