Climate in Jefferson County, New York

Jefferson County, New York gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Jefferson County averages 110 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 Jefferson County. The US average is 205 sunny days.

Jefferson County gets some kind of precipitation, on average, 161 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 80 degrees
Winter Low: the January low is 9
Rain: averages 40 inches of rain a year
Snow: averages 110 inches of snow a year

BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Jefferson County is 6.1 (10=best), which means it is one of the least comfortable places in New York.

July is the hottest month for Jefferson County with an average high temperature of 79.5°, which ranks it as cooler than most places in New York. In Jefferson County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jefferson County are August, July and June.

January has the coldest nighttime temperatures for Jefferson County with an average of 9.0°. This is one of the coldest places in New York.

In Jefferson County, there are 1.9 days annually when the high temperature is over 90°, which is one of the coolest places in New York.

In Jefferson County, there are 149.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New York.

In Jefferson County, there are 21.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in New York.

November is the wettest month in Jefferson County with 4.1 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Winter with 30% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 40.4 inches in Jefferson County means that it is drier than most places in New York.

December is the rainiest month in Jefferson County with 17.1 days of rain, and July is the driest month with only 10.4 rainy days. There are 160.8 rainy days annually in Jefferson County, which is rainier than most places in New York. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 109.5 inches in Jefferson County means that it is one of the snowiest places in New York. January is the snowiest month in Jefferson County with 31.7 inches of snow, and 7 months of the year have significant snowfall.

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