September weather forecast
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 temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 71.2°F (21.8°C).

Temperature

In September, the average high-temperature slightly decreases from a warm 78.8°F (26°C) in August to a pleasant 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 September is 74%.

Rainfall

In September, in Saint Paul, the rain falls for 11.1 days. Throughout September, 1.89" (48mm) of precipitation is 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.

Daylight

In Saint Paul, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:50 pm. On the last day of September, in Saint Paul, sunrise is at 7:09 am and sunset at 6:55 pm CDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Saint Paul?

In Saint Paul, in September, the average high-temperature is 71.2°F (21.8°C), and the average low-temperature is 53.2°F (11.8°C). in July, the average heat index (a.k.a. 'real feel', 'apparent 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 Saint Paul?

In September, the average relative humidity in Saint Paul, Minnesota, is 74%.

How much does it rain in Saint Paul in September?

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

When it does not snow in Saint Paul?

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

Does it snow in Saint Paul in September?

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

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

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

When are sunrise and sunset in September in Saint Paul?

On the first day of September in Saint Paul, sunrise is at 6:34 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:55 pm CDT.

How long on average sun shines in September in Saint Paul?

In Saint Paul, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Saint Paul?

In September, the average daily maximum UV index in Saint Paul is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
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"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).

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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").
The 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).
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 Paul, MN

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

The month with the longest days is June (Average daylight: 15h and 33min).
The month with the shortest days is December (Average daylight: 8h and 50min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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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).
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 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).
The 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

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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