September weather forecastBig Lake, MN
September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 12h and 30min
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 54min
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: 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: 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: 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: 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).
