Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September correlates with a minor temperature reduction, down from August's moderately hot 78.4°F (25.8°C) to an agreeable 72.5°F (22.5°C). Mountain Lake throughout September, experiences an average nighttime temperature of 53.2°F (11.8°C).Humidity
In September, the average relative humidity is 73%.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Mountain Lake, there are 107.8 rainfall days, and 15.87" (403mm) of precipitation is accumulated.Snowfall
In Mountain Lake, snow does not fall in June through September.Daylight
The average length of the day in September in Mountain Lake, Minnesota, is 12h and 29min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:01 pm CDT.
Sunshine
In Mountain Lake, Minnesota, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the temperature in September in Mountain Lake?
What is the average humidity in September in Mountain Lake?
How many days does it rain in September in Mountain Lake?
When it does not snow in Mountain Lake?
Does it snow in Mountain Lake in September?
How many hours of daylight does Mountain Lake have in September?
When is the sunrise / sunset in September in Mountain Lake?
How many hours of sunshine does Mountain Lake have in September?
How high is the UV index in September in Mountain Lake?
Average temperature in September
Mountain Lake, MN
- Average high temperature in September: 72.5°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 (21°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in September
Mountain Lake, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Mountain Lake, MN
- Average wind speed in September: 9mph
The windiest months (with the highest average wind speed) are January and February (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in September
Mountain Lake, MN
- Average humidity in September: 73%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Mountain Lake, MN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Mountain Lake, MN
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in September
Mountain Lake, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mountain Lake, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mountain Lake, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Mountain Lake, MN
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Mountain 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 and November (UV index 1).
Average cloud cover in September
Mountain Lake, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in September
Mountain Lake, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Mountain Lake, Minnesota, USA
Weather forecast for your location
2. Allow the app to use your location
