Dover (DE) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Dover, Delaware, United States of America. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's now guide you through the details for a complete overview.

Dover is known for its substantial rain/snowfall, with annual precipitation reaching 1220 mm (48 in).

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Dover offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between October (143 mm (5.6 in)) and February (70 mm (2.8 in)) is not too significant, making the climate enjoyable for visitors and residents alike.

October, the wettest month, has a maximum daytime temperature of 20°C (68°F). During the driest month February you can expect a temperature of 7°C (45°F). For more detailed insights into the city's temperatures, visit our Dover Temperature page.

Dover's average annual precipitation is 1220 mm (48 in). Let's compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.

Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Dover (DE)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Dover (DE) Climate page.