Delaware Climate


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Delaware State has a humid subtropical climate, characterized by hot, humid summers and mild winters. Summers in Delaware can be quite hot and sunny with temperatures into the 90s Fahrenheit (32-37°C). Winter temperatures range from the mid-30s to mid-40s Fahrenheit (4-7°C). Precipitation is evenly distributed throughout the year with an average of over 45 inches (114 cm) of rain annually. The state also experiences some snowfall each year which can accumulate to up to several feet in some areas. Coastal parts of Delaware experience more rain than inland areas due to their proximity to the Atlantic Ocean. Thunderstorms are common during summer months, especially during late afternoon and evening hours.

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

Delaware averages 13 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 202 sunny days per year in Delaware. The US average is 205 sunny days.

Delaware gets some kind of precipitation, on average, 116 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 13 inches of snow a year

Bestplaces Comfort Index

Delaware's annual BestPlaces Comfort Index of 7.3 (10=best) indicates it is more comfortable than most states in the United States.

8.2 Summer - 5.8 Winter
September, June and May are the most pleasant months in the state of Delaware, while January and February are the least comfortable months.

  ClimateDelaware, DelawareUnited States
  45.3 in.38.1 in.
  13.3 in.27.8 in.
  115.5 days106.2 days
  202 days205 days
  51 ft.2443 ft.

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 with an average high temperature of 86.5°, which ranks it as about average compared to other states. In Delaware, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Delaware are September, May and June.
Delaware has 20.1 days annually when the high temperature is over 90°, which is about average compared to other states in the U.S.
January has the coldest nighttime temperatures for Delaware with an average of 25.3°. This is warmer than most of the U.S. states.
Delaware has 89.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most states in the U.S.
Delaware averages 0.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most states in the U.S.
The humidity can be uncomfortably heavy or close in the state of Delaware during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in the state of Delaware.
September is the wettest month in Delaware with 4.4 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. Delaware's average annual rainfall of 45.3 inches indicates that it is wetter than most states in the United States.
May is the rainiest month in Delaware with 10.8 days of rain, and October is the driest month with only 8.6 rainy days. Delaware's annual average of 115.5 days with measurable rain is rainier than most states in the United States. 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.
Delaware's average annual snowfall of 13.3 inches indicates that it is one of the least snowy states in the United States. February is the snowiest month in Delaware with 5.5 inches of snow, and 4 months of the year have significant snowfall.
Reviews for Delaware
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Over 6 years ago

Delaware is a small state which makes everything you need close. It is also centrally located between major cities like Baltimore and Philadelphia. The property taxes  More

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Over 13 years ago

Compared to  More

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Over 14 years ago

i would like to know is dover,de is a good place to raise kids.cause i have 4. is the crime rate low? where is the best area to live in dover,de? please reply...... if  More

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