September weather forecastMontevideo, MN
September
Weather in September
September signals the onset of fall in Montevideo, marking the end of hot summer days. The city experiences a significant drop in temperature, but the humidity remains more or less consistent. With temperatures cooling down to 73°F (22.8°C), a noticeable change ensues in the city's ambiance. The onset of fall becomes apparent not only in the reduction of daylight hours but also in the changing colors of the cityscape. Undeniably, September infuses its own flavor into Montevideo's year-round weather dynamics.Temperature
Montevideo in September undergoes a slight reduction in the average high-temperature, shifting from August's warm 80.2°F (26.8°C) to an agreeable 73°F (22.8°C). In the month of September, the nighttime temperature dips to a steady average of 52.7°F (11.5°C).Humidity
In September, the average relative humidity in Montevideo is 69%.Rainfall
In Montevideo, in September, during 10.1 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Montevideo, during the entire year, the rain falls for 109.8 days and collects up to 21.54" (547mm) of precipitation.Snowfall
May through September are months without snowfall in Montevideo.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:59 pm. On the last day of September, in Montevideo, sunrise is at 7:20 am and sunset at 7:04 pm CDT.
Sunshine
In Montevideo, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montevideo, MN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in September: 52.7°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 (5.9°F).
Average pressure in September
Montevideo, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Montevideo, MN
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Montevideo, MN
- Average humidity in September: 69%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Montevideo, MN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Montevideo, MN
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in September
Montevideo, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Montevideo, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Montevideo, 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 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Montevideo, MN
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Montevideo, 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 and November (UV index 1).
Average cloud cover in September
Montevideo, MN
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Montevideo, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
