September weather forecastTecumseh, MI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Tecumseh, Michigan, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 54.3°F (12.4°C).Temperature
September's arrival brings an average high-temperature of an agreeable 72.5°F (22.5°C), slightly deviating from August's 77.7°F (25.4°C). Throughout the month of September, Tecumseh observes an average nighttime temperature of 54.3°F (12.4°C).Humidity
In Tecumseh, the average relative humidity in September is 79%.Rainfall
In Tecumseh, during September, the rain falls for 11.5 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 138.3 rainfall days, and 20.31" (516mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Tecumseh.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:02 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:18 pm EDT.
Sunshine
The average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index in Tecumseh is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tecumseh, MI
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in September
Tecumseh, 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
Tecumseh, MI
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in September
Tecumseh, MI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Tecumseh, MI
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in September
Tecumseh, MI
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Tecumseh, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Tecumseh, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tecumseh, 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: 7h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Tecumseh, MI
- Average sunshine days in September: 16.5 days
The months with the most sunshine days are September and October (16.5 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in September
Tecumseh, MI
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Tecumseh, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Tecumseh, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
