Dennison, PA Climate


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Dennison, PA has a humid continental climate with hot summers and cold winters. The average summer temperatures range from 65-85°F while the average winter temperatures range from 25-45°F. Winter months generally bring snowfall and the occasional freezing rain. The area gets around 35 inches of precipitation per year spread out over the seasons, with most of it occurring during the warm summer months. Thunderstorms are common during the warmer months as well.

Dennison, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Dennison averages 39 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 176 sunny days per year in Dennison. The US average is 205 sunny days.

Dennison gets some kind of precipitation, on average, 125 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 82 degrees
Winter Low: the January low is 16
Rain: averages 47 inches of rain a year
Snow: averages 39 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Dennison is 6.8 (10=best), which means it is less comfortable than most places in Pennsylvania.

9.1 Summer - 4.7 Winter
August, July and June are the most pleasant months in Dennison, while January and February are the least comfortable months.

  ClimateDennison, PennsylvaniaUnited States
  46.7 in.38.1 in.
  38.8 in.27.8 in.
  124.8 days106.2 days
  176 days205 days
  81.6°85.8°
  15.7°21.7°
  6.87
  3.84.3
  1281 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 Dennison with an average high temperature of 81.6°, which ranks it as cooler than most places in Pennsylvania. In Dennison, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dennison are June, August and July.
In Dennison, there are 6.2 days annually when the high temperature is over 90°, which is cooler than most places in Pennsylvania.
January has the coldest nighttime temperatures for Dennison with an average of 15.7°. This is colder than most places in Pennsylvania.
In Dennison, there are 142.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Pennsylvania.
In Dennison, there are 5.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Pennsylvania.
Humidity in Dennison 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 Dennison with 4.8 inches of rain, and the driest month is February with 2.6 inches. The wettest season is Autumn with 28% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 46.7 inches in Dennison means that it is wetter than most places in Pennsylvania.
May is the rainiest month in Dennison with 11.9 days of rain, and February is the driest month with only 9.4 rainy days. There are 124.8 rainy days annually in Dennison, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 38.8 inches in Dennison means that it is snowier than most places in Pennsylvania. January is the snowiest month in Dennison with 13.4 inches of snow, and 6 months of the year have significant snowfall.
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