September weather forecast and climate
Saint Paul, MN

The Saint Paul
The Saint Paul's Cathedral church ground in Saint Paul, Minnesota

Weather in September

The first month of the autumn, September, is also an agreeable month in Saint Paul, Minnesota, with average temperature fluctuating between 71.2°F (21.8°C) and 53.2°F (11.8°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 78.8°F (26°C) in August, to an agreeable 71.2°F (21.8°C). In Saint Paul, in September, the average low-temperature is 53.2°F (11.8°C).

Humidity

The average relative humidity in Saint Paul is 74%.

Rainfall

In Saint Paul, in September, during 11.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Saint Paul, during the entire year, the rain falls for 116.5 days and collects up to 21.81" (554mm) of precipitation.

Snowfall

June through September are months without snowfall in Saint Paul.

Daylight

The average length of the day in Saint Paul is 12.5h.

Sunshine

The average sunshine in Saint Paul is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 4 in September transform into the following instructions:
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 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 Saint Paul?

The average high-temperature, in September, is 71.2°F (21.8°C), while the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in September in Saint Paul?

The average relative humidity in September is 74%.

How many days does it rain in September in Saint Paul?

In Saint Paul, in September, it is raining for 11.1 days, with typically 1.89" (48mm) of accumulated precipitation.

Does it snow in Saint Paul in September?

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

When it does not snow in Saint Paul?

June through September are months without snowfall in Saint Paul.

How many hours of daylight does Saint Paul have in September?

In September, the average length of the day in Saint Paul is 12.5h.

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

The average sunshine in September in Saint Paul is 8.6h.

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

In September, the average daily maximum UV index in Saint Paul is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Saint Paul, MN

Average temperature in September - Saint Paul, MN
  • Average high temperature in September: 71.2°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 (19.9°F).

  • Average low temperature in September: 53.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

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Average pressure in September
Saint Paul, MN

Average pressure in September - Saint Paul, MN
  • Average pressure in September: 30"

Months with the highest atmospheric pressure are January and February (30.13").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in September
Saint Paul, MN

Average wind speed in September - Saint Paul, MN
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in September
Saint Paul, MN

Average humidity in September - Saint Paul, MN
  • Average humidity in September: 74%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Saint Paul, MN

Average rainfall in September - Saint Paul, MN
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
Saint Paul, MN

Average rainfall days in September - Saint Paul, MN
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (2 days).

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Average snowfall in September
Saint Paul, MN

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

The month with the highest snowfall is February (4.69").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Saint Paul, MN

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

The month with the highest number of snowfall days is January (13.8 days).
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 Paul, MN

Average daylight in September / Average sunshine in September - Saint Paul, MN
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is July (Average sunshine: 9.9h).
The month with the least sunshine is January (Average sunshine: 3h).

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Average sunshine days in September
Saint Paul, MN

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

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in September
Saint Paul, MN

Average UV index in September - Saint Paul, MN
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
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 Paul, MN

Average cloud cover in September - Saint Paul, MN
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 69).
Months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in September
Saint Paul, MN

Average visibility in September - Saint Paul, MN
  • Average visibility in September: 6mi

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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