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Dover (DE) Weather and Climate: A Comprehensive Guide

The temperature in Dover can vary greatly throughout the year. The temperatures shift from very warm to cold. It also experiences much rain/snowfall throughout the year. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from very warm to chilly in Dover. Average daytime temperatures reach a very warm 31°C in July. In January, the coolest month of the year, temperatures drop to a chilly 6°C.

At night, you can expect cooler temperatures, with averages dropping to around -3°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Dover has a relatively rain/snowy climate with high precipitation levels, averaging 1220 mm of rain/snowfall annually. Dover experiences moderate seasonal variation in rainfall, with monthly averages ranging from 143 mm in October, the wettest month, and 70 mm in February, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Dover (DE)

Sat   Dec 21
2°C | -5°C
NW 9 m/s
almost clear and no rain

almost clear and no rain

Sun   Dec 22
-1°C | -7°C
NW 6 m/s
clear and no rain

clear and no rain

Mon   Dec 23
1°C | -8°C
E 3 m/s
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Dover in the United States of America

During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Dover?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Dover?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Dover?
    The coldest month is January with an average maximum temperature of 6°C.
  • Which is the wettest month in Dover?
    October tops the wettest month list with 143 mm of rainfall.
  • Which is the driest month in Dover?
    February is the driest month with 70 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.