Historical weather data, all-time temperature records, and monthly climate averages for Dover, DE. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Dover sits right in that transitional sweet spot — historically averaging a 62° high and 40° low across 119 years of records. The date has seen some wild swings though, from a balmy 82° in 2010 down to a teeth-chattering 27° back in 1915. There's about a 38% chance of rain today, but snow is basically off the table at just 1%.
Dover's weather history has some real extremes baked in — the mercury has soared as high as 104° on July 21, 1930, and plunged to a brutal -11° on February 9, 1934, a 115-degree spread between the all-time marks. The wettest single day on record dumped 8.5 inches on July 13, 1975, while a February 1979 storm buried the city under 25 inches of snow in a single day.
Dover peaks in the third week of July, when average highs reach 88°, and bottoms out in mid-January around 43°. The shoulder months are pleasant — April through October all average above 65° — making spring and fall ideal for visitors. Late summer is the wettest stretch, with the week of August 13-19 averaging 1.28 inches of precipitation, often from thunderstorms or tropical moisture.