September weather forecast
West Saint Paul, MN

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Weather in September

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

Temperature

As September arrives, West Saint Paul's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 78.8°F (26°C) to a pleasant 71.2°F (21.8°C). Throughout the month of September, West Saint Paul witnesses an average low-temperature of 53.2°F (11.8°C).

Humidity

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

Rainfall

In West Saint Paul, during September, the rain falls for 11.1 days and regularly aggregates up to 1.89" (48mm) of precipitation. In West 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

The average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 6:35 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:54 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 4 during September translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What are the temperatures in September?

In West Saint Paul, 71.2°F (21.8°C) is the average high-temperature and 53.2°F (11.8°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in July is evaluated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September in West Saint Paul is 74%.

How many days does it rain in September?

In West Saint Paul, in September, during 11.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

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

Does it snow in September?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:35 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:54 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from 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
West Saint Paul, MN

Average temperature in September - West 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).

Average pressure in September
West Saint Paul, MN

Average pressure in September - West 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).

Average wind speed in September
West Saint Paul, MN

Average wind speed in September - West 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).

Average humidity in September
West Saint Paul, MN

Average humidity in September - West 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%).

Average rainfall in September
West Saint Paul, MN

Average rainfall in September - West 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").

Average rainfall days in September
West Saint Paul, MN

Average rainfall days in September - West 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).

Average snowfall in September
West Saint Paul, MN

Average snowfall in September - West 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").

Average snowfall days in September
West Saint Paul, MN

Average snowfall days in September - West 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).

Average daylight in September /
Average sunshine in September
West Saint Paul, MN

Average daylight in September / Average sunshine in September - West Saint Paul, 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 48min).

  • Average sunshine in September: 8h and 4min

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).

Average sunshine days in September
West Saint Paul, MN

Average sunshine days in September - West 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).

Average UV index in September
West Saint Paul, MN

Average UV index in September - West 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).

Average cloud cover in September
West Saint Paul, MN

Average cloud cover in September - West 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).

Average visibility in September
West Saint Paul, MN

Average visibility in September - West 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).

West Saint Paul, Minnesota, USA

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