Sullivan, PA Climate


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United States / Pennsylvania / No Metro Area / Tioga County / Sullivan / Zip Codes
Sullivan, PA has a humid continental climate with warm summers and cold winters. The average high temperature in the summer is around 80 degrees Fahrenheit and the average low temperature in the winter is around 10 degrees Fahrenheit. Precipitation is fairly common throughout the year, with an average of over 40 inches per year. The area does experience occasional snowfall during the colder months, typically accumulating small amounts.

Sullivan, Pennsylvania gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sullivan averages 47 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 177 sunny days per year in Sullivan. The US average is 205 sunny days.

Sullivan gets some kind of precipitation, on average, 146 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 14
Rain: averages 37 inches of rain a year
Snow: averages 47 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sullivan is 6.5 (10=best), which means it is less comfortable than most places in Pennsylvania.

9 Summer - 4.2 Winter
August, July and June are the most pleasant months in Sullivan, while January and December are the least comfortable months.

  ClimateSullivan, PennsylvaniaUnited States
  37.1 in.38.1 in.
  47.0 in.27.8 in.
  146.2 days106.2 days
  177 days205 days
  80.4°85.8°
  14.3°21.7°
  6.57
  3.34.3
  1722 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Sullivan with an average high temperature of 80.4°, which ranks it as cooler than most places in Pennsylvania. In Sullivan, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sullivan are August, June and July.
In Sullivan, there are 4.2 days annually when the high temperature is over 90°, which is cooler than most places in Pennsylvania.
January has the coldest nighttime temperatures for Sullivan with an average of 14.3°. This is one of the coldest places in Pennsylvania.
In Sullivan, there are 156.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Pennsylvania.
In Sullivan, there are 8.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Pennsylvania.
Humidity in Sullivan is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in Sullivan with 4.4 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Autumn with 31% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 37.1 inches in Sullivan means that it is one of the driest places in Pennsylvania.
May is the rainiest month in Sullivan with 13.4 days of rain, and February is the driest month with only 10.3 rainy days. There are 146.2 rainy days annually in Sullivan, which is rainier than most places in Pennsylvania. The rainiest season is Summer when it rains 26% of the time and the driest is Winter with only a 24% chance of a rainy day.
An annual snowfall of 47.0 inches in Sullivan means that it is snowier than most places in Pennsylvania. January is the snowiest month in Sullivan with 11.8 inches of snow, and 6 months of the year have significant snowfall.
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