Tecumseh, IN has a humid continental climate characterized by hot summers and cold winters. The average temperature in the summer months is around 77°F (25°C) while winter temperatures usually stay below freezing, with an average of around 20°F (-7°C). Rainfall is moderate throughout the year, averaging around 38 inches (97 cm) annually, with most of it coming during the warmer months of spring and summer. Snowfall is also common in wintertime, often totaling around 25 inches (64 cm) per season. Overall, Tecumseh's climate is mild and pleasant for much of the year; however, its location on open plains can lead to unpredictable weather patterns at times.
Tecumseh, Indiana gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Tecumseh averages 18 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 190 sunny days per year in Tecumseh. The US average is 205 sunny days.
Tecumseh gets some kind of precipitation, on average, 110 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 87 degrees
Winter Low: the January low is 20
Rain: averages 45 inches of rain a year
Snow: averages 18 inches of snow a year