Jamestown, Indiana enjoys a humid continental climate typical of the Midwest. The area experiences all four seasons and often has hot summers and cold winters. Snowfall is common during the winter months and temperatures can drop below freezing. Spring brings mild weather with temperatures rising steadily throughout April and May. Summer temperatures remain in the mid to high 80s, with occasional heat waves that can bring temperatures over 90°F (32°C). Fall sees cooler weather returning, with temperatures gradually declining in October and November.
Jamestown, Indiana gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jamestown averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 188 sunny days per year in Jamestown. The US average is 205 sunny days.
Jamestown gets some kind of precipitation, on average, 112 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 84 degrees
Winter Low: the January low is 18
Rain: averages 42 inches of rain a year
Snow: averages 16 inches of snow a year