September weather forecast
Big Lake, MN

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Weather in September

September, the first month of the autumn in Big Lake, is also an agreeable month, with an average temperature ranging between min 52.2°F (11.2°C) and max 70.3°F (21.3°C).

Temperature

With the arrival of September, Big Lake experiences a modest decline in average high-temperatures, transitioning from a warm 78.3°F (25.7°C) in August to a pleasant 70.3°F (21.3°C). Big Lake witnesses an average low-temperature of 52.2°F (11.2°C) throughout the month of September.

Humidity

In Big Lake, the average relative humidity in September is 75%.

Rainfall

In September, the rain falls for 11.5 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. In Big Lake, Minnesota, during the entire year, the rain falls for 119.9 days and collects up to 20.51" (521mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Big Lake, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:56 pm CDT.

Sunshine

In September, the average sunshine in Big Lake is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 4 during September translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Big Lake?

The high-temperature, in September, in Big Lake, records 70.3°F (21.3°C), while the low-temperature is 52.2°F (11.2°C).

What is the average humidity in September in Big Lake?

In September, the average relative humidity is 75%.

How much does it rain in Big Lake in September?

In September, in Big Lake, Minnesota, the rain falls for 11.5 days. Throughout September, 1.57" (40mm) of precipitation is accumulated.

When it does not snow in Big Lake?

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

Does it snow in Big Lake in September?

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

How many hours of daylight does Big Lake have in September?

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

When is the sunrise / sunset in September in Big Lake?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:56 pm CDT.

How many hours of sunshine does Big Lake have in September?

The average sunshine duration in September in Big Lake, Minnesota, is 8.9h.

How high is the UV index in September in Big Lake?

In Big Lake, Minnesota, 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 the Sun's UV radiation.
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
Big Lake, MN

Average temperature in September - Big Lake, MN
  • Average high temperature in September: 70.3°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in September: 52.2°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).

Average pressure in September
Big Lake, MN

Average pressure in September - Big Lake, MN
  • Average pressure in September: 29.99"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Big Lake, MN

Average wind speed in September - Big Lake, MN
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in September
Big Lake, MN

Average humidity in September - Big Lake, MN
  • Average humidity in September: 75%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (70%).

Average rainfall in September
Big Lake, MN

Average rainfall in September - Big Lake, MN
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in September
Big Lake, MN

Average rainfall days in September - Big Lake, MN
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in September
Big Lake, MN

Average snowfall in September - Big Lake, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Big Lake, MN

Average snowfall days in September - Big Lake, MN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in September
Big Lake, MN

Average sunshine days in September - Big Lake, MN
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in September
Big Lake, MN

Average UV index in September - Big Lake, MN
  • Average UV index in September: 4

The months with the highest UV index are June and 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
Big Lake, MN

Average cloud cover in September - Big Lake, MN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in September
Big Lake, MN

Average visibility in September - Big Lake, 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).

Big Lake, Minnesota, USA

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