Groton, NY has a humid continental climate with hot, humid summers and cold, snowy winters. In the summer months, temperatures typically range from the mid-60s to the mid-80s Fahrenheit. Winters are quite long and cold, with temperatures often dipping below freezing for several days at a time. Snowfall in Groton is quite heavy in the winter months as well, with average yearly snowfall totals reaching around 60 inches. The weather in Groton throughout the year is fairly unpredictable due to its location near Lake Ontario and Cayuga Lake.
Groton, New York gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Groton averages 74 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 155 sunny days per year in Groton. The US average is 205 sunny days.
Groton gets some kind of precipitation, on average, 159 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 78 degrees
Winter Low: the January low is 13
Rain: averages 40 inches of rain a year
Snow: averages 74 inches of snow a year