September weather forecastDundee, MI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Dundee, Michigan, with an average temperature fluctuating between 55.8°F (13.2°C) and 72.9°F (22.7°C).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a warm 78.4°F (25.8°C) in August to a pleasant 72.9°F (22.7°C). Dundee observes an average low-temperature of 55.8°F (13.2°C) during September.Humidity
In Dundee, the average relative humidity in September is 78%.Rainfall
In Dundee, Michigan, in September, it is raining for 11.7 days, with typically 0.94" (24mm) of accumulated precipitation. In Dundee, during the entire year, the rain falls for 132.8 days and collects up to 16.18" (411mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Dundee, the average length of the day in September is 12h and 28min.On the first day of September in Dundee, sunrise is at 7:01 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine in Dundee is 8h.UV index
In September, the average daily maximum UV index in Dundee is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dundee, MI
- Average high temperature in September: 72.9°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 (29.7°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Dundee, MI
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Dundee, MI
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in September
Dundee, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Dundee, MI
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in September
Dundee, MI
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Dundee, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Dundee, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dundee, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 0min
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 6min).
Average sunshine days in September
Dundee, MI
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in September
Dundee, MI
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Dundee, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Dundee, MI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
