September weather forecastPlummer, MN
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Plummer, Minnesota, with an average temperature varying between 68.9°F (20.5°C) and 50.5°F (10.3°C).Temperature
Transition into September marks a drop in the average high-temperature, moving from a warm 79°F (26.1°C) in August to an agreeable 68.9°F (20.5°C). During the month of September, the nighttime temperature falls to an average of 50.5°F (10.3°C).Humidity
In September, the average relative humidity in Plummer, Minnesota, is 66%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. In Plummer, Minnesota, during the entire year, the rain falls for 104 days and collects up to 18.03" (458mm) of precipitation.Snowfall
June through September are months without snowfall in Plummer, Minnesota.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:04 pm CDT.
Sunshine
The average sunshine in September in Plummer is 8.5h.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 exposure to the Sun's UV radiation for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Plummer, MN
- Average high temperature in September: 68.9°F
The warmest months (with the highest average high temperature) are July and August (79°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average pressure in September
Plummer, MN
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Plummer, MN
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is October (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Plummer, MN
- Average humidity in September: 66%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Plummer, MN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Plummer, MN
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in September
Plummer, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Plummer, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Plummer, MN
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Plummer, MN
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Plummer, MN
- Average UV index in September: 4
The month with the highest UV index is 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
Plummer, MN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Plummer, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
