The climate in Lewis, NY County is mostly humid continental, which means that it typically experiences four distinct seasons. Winters are cold and snowy, with temperatures often falling below freezing. Summers are warm and humid, with temperatures usually reaching the mid-80s during the day and dropping to the low-60s in the evenings. Rainfall is evenly distributed throughout the year, although summers tend to be slightly drier. Snowfall can occur any time between late October and early April. Spring and autumn are milder and transitional seasons that bring pleasant weather for outdoor activities such as hiking and camping.
Lewis County, New York gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Lewis County averages 150 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 161 sunny days per year in Lewis County. The US average is 205 sunny days.
Lewis County gets some kind of precipitation, on average, 174 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 77 degrees
Winter Low: the January low is 7
Rain: averages 47 inches of rain a year
Snow: averages 150 inches of snow a year