Delaware County, Pennsylvania 

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Climate in Delaware County, Pennsylvania

Delaware County, Pennsylvania gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Delaware County averages 16 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 204 sunny days per year in Delaware County. The US average is 205 sunny days.

Delaware County gets some kind of precipitation, on average, 114 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 87 degrees
Winter Low: the January low is 25
Rain: averages 45 inches of rain a year
Snow: averages 16 inches of snow a year


SPERLING'S COMFORT INDEX
Delaware County ranks 54/100 for Comfort Index

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 54. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.

CLIMATE

Climate Averages
  Delaware, PennsylvaniaUnited States
  44.8 in.38.1 in.
  16.0 in.27.8 in.
  113.6 days106.2 days
  204 days205 days
  86.9°85.8°
  25.1°21.7°
  5454
  3.84.3
  232 ft.2443 ft.

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 Delaware County with an average high temperature of 86.9°, which ranks it as one of the hottest places in Pennsylvania. In Delaware County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Delaware County are September, May and June.


January has the coldest nighttime temperatures for Delaware County with an average of 25.1°. This is one of the warmest places in Pennsylvania.


In Delaware County, there are 23.5 days annually when the high temperature is over 90°, which is one of the hottest places in Pennsylvania.


In Delaware County, there are 84.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.


In Delaware County, there are 0.4 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.


July is the wettest month in Delaware County with 4.6 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 44.8 inches in Delaware County means that it is wetter than most places in Pennsylvania.


April is the rainiest month in Delaware County with 11.1 days of rain, and October is the driest month with only 8.3 rainy days. There are 113.6 rainy days annually in Delaware County, which is one of the least rainy places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.


An annual snowfall of 16.0 inches in Delaware County means that it is one of the least snowy places in Pennsylvania.



February is the snowiest month in Delaware County with 6.0 inches of snow, and 4 months of the year have significant snowfall.


CLIMATE MAP
  • Annual Rainfall (US Avg: 36.5")
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    MAPS OF DELAWARE COUNTY, PENNSYLVANIA
    ZIP CODES IN DELAWARE COUNTY, PENNSYLVANIA
    19082, 19083, 19013, 19063, 19087, 19026, 19050, 19064, 19018, 19023, ... 38 more

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