September weather forecastSide Lake, MN

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Side Lake, Minnesota, with an average temperature fluctuating between 47.3°F (8.5°C) and 66.2°F (19°C).

Temperature

As September begins, there is a decrease in the average high-temperature, falling from a warm 75.4°F (24.1°C) in August to a comfortable 66.2°F (19°C). Throughout September, Side Lake encounters an average temperature drop to a frosty 47.3°F (8.5°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Side Lake, in September, during 13.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Side Lake, during the entire year, the rain falls for 116.8 days and collects up to 22.17" (563mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Side Lake, the average length of the day in September is 12h and 33min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:52 pm CDT.

Sunshine

In September, the average sunshine is 7.8h.

UV index

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 3 during September, leads to the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during September are 66.2°F (19°C) and 47.3°F (8.5°C) respectively.

The average relative humidity in September is 77%.

In September, the rain falls for 13.1 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

In Side Lake, snow does not fall in June through September.

In Side Lake, in September, it doesn't snow. In October, it regularly snows.

In Side Lake, the average day length in September is 12h and 33min.

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:52 pm CDT.

The average sunshine duration in September is 7.8h.

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Side Lake, MN

  • Average high temperature in September: 66.2°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (14.4°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (0°F).

Average pressure in September
Side Lake, MN

  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Side Lake, MN

  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in September
Side Lake, MN

  • Average humidity in September: 77%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is May (72%).

Average rainfall in September
Side Lake, MN

  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.94").

Average rainfall days in September
Side Lake, MN

  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (1.7 days).

Average snowfall in September
Side Lake, MN

  • Average snowfall in September: 0"

The month with the highest snowfall is December (9.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Side Lake, MN

  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is January (21.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Side Lake, MN

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 7h and 48min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).

Average sunshine days in September
Side Lake, MN

  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is August (16 days).
The month with the least sunshine days is March (8.8 days).

Average UV index in September
Side Lake, MN

  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in September
Side Lake, MN

  • Average cloud cover in September: 45

The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in September
Side Lake, MN

  • Average visibility in September: 5mi

The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).