September weather forecast
Spring Grove, MN

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Weather in September

The first month of the autumn, September, is still a pleasant month in Spring Grove, Minnesota, with an average temperature varying between 51.3°F (10.7°C) and 71.1°F (21.7°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a warm 77.9°F (25.5°C) to an agreeable 71.1°F (21.7°C). In the month of September, the nighttime temperature in Spring Grove dips to a steady average of 51.3°F (10.7°C).

Humidity

In Spring Grove, the average relative humidity in September is 80%.

Rainfall

In September, the rain falls for 12.1 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In Spring Grove, Minnesota, during the entire year, the rain falls for 130.5 days and collects up to 26.5" (673mm) of precipitation.

Snowfall

In Spring Grove, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September in Spring Grove, sunrise is at 6:31 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:48 pm CDT.

Sunshine

In Spring Grove, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September in Spring Grove is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 3 during September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Spring Grove?

In September, in Spring Grove, the average high-temperature is 71.1°F (21.7°C), and the average low-temperature is 51.3°F (10.7°C).

What is the average humidity in September in Spring Grove?

In September, the average relative humidity in Spring Grove is 80%.

How much does it rain in Spring Grove in September?

In Spring Grove, Minnesota, during September, the rain falls for 12.1 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Spring Grove?

In Spring Grove, Minnesota, snow does not fall in June through September.

Does it snow in Spring Grove in September?

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

How many hours of daylight does Spring Grove have in September?

In September, the average day length is 12h and 29min.

What time are sunrise and sunset in September in Spring Grove?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:41 pm. On the last day of the month, in Spring Grove, sunrise is at 7:03 am and sunset at 6:48 pm CDT.

How long on average sun shines in September in Spring Grove?

In September, the average sunshine duration in Spring Grove is 8.7h.

How high is the UV index in September in Spring Grove?

In Spring Grove, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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
Spring Grove, MN

Average temperature in September - Spring Grove, MN
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.7°F).

  • Average low temperature in September: 51.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (8.8°F).

Average pressure in September
Spring Grove, MN

Average pressure in September - Spring Grove, MN
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in September
Spring Grove, MN

Average wind speed in September - Spring Grove, MN
  • Average wind speed in September: 7.4mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in September
Spring Grove, MN

Average humidity in September - Spring Grove, MN
  • Average humidity in September: 80%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).

Average rainfall in September
Spring Grove, MN

Average rainfall in September - Spring Grove, MN
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in September
Spring Grove, MN

Average rainfall days in September - Spring Grove, MN
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (3 days).

Average snowfall in September
Spring Grove, MN

Average snowfall in September - Spring Grove, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Spring Grove, MN

Average snowfall days in September - Spring Grove, MN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Spring Grove, MN

Average daylight in September / Average sunshine in September - Spring Grove, MN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in September
Spring Grove, MN

Average sunshine days in September - Spring Grove, MN
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is June (9.8 days).

Average UV index in September
Spring Grove, MN

Average UV index in September - Spring Grove, MN
  • Average UV index in September: 3

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
Spring Grove, MN

Average cloud cover in September - Spring Grove, MN
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Spring Grove, MN

Average visibility in September - Spring Grove, MN
  • Average visibility in September: 5mi

The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).

Spring Grove, Minnesota, USA

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