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
In the transition to September, Round Lake observes a minor drop in the average high-temperature, shifting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 72.5°F (22.5°C). Round Lake, during the month of September, experiences an average low-temperature of 53.2°F (11.8°C).Humidity
In Round Lake, Minnesota, the average relative humidity in September is 73%.Rainfall
In Round Lake, during September, the rain falls for 11.2 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Round Lake, during the entire year, the rain falls for 130.6 days and collects up to 24.57" (624mm) of precipitation.Snowfall
June through September are months without snowfall in Round Lake, Minnesota.Daylight
The average length of the day in September in Round Lake is 12h and 29min.On the first day of September, sunrise is at 6:46 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:04 pm CDT.
Sunshine
In Round Lake, the average sunshine in September 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 medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 4 during September translates into the following guidance:
Take necessary precautions - Defending against sun damage is advocated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What is the temperature in September in Round Lake?
What is the average humidity in September in Round Lake?
How much does it rain in Round Lake in September?
When it does not snow in Round Lake?
Does it snow in Round Lake in September?
How many hours of daylight does Round Lake have in September?
When is the sunrise / sunset in September in Round Lake?
How long on average sun shines in September in Round Lake?
What is the UV index intensity in September in Round Lake?
Average temperature in September
Round Lake, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in September
Round Lake, MN
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Round Lake, MN
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Round 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
Round Lake, MN
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Round Lake, MN
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Round Lake, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Round Lake, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Round 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: 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 54min).
Average sunshine days in September
Round Lake, MN
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (8.7 days).
Average UV index in September
Round Lake, MN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in September
Round Lake, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Round 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).
Round Lake, Minnesota, USA
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