Cromwell (CT) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Cromwell, Connecticut, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's explore all the details to give you a full picture.

Cromwell is known for its substantial rain/snowfall, with annual precipitation reaching 1303 mm (51 in).

Monthly Precipitation Levels

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

Year-round, Cromwell has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 147 mm (5.8 in), and the driest month, September, with 90 mm (3.5 in), is minimal.

June, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 273 hours of sunshine in this period. During the driest month September you can expect a temperature of 25°C (77°F). For more detailed insights into the city's temperatures, visit our Cromwell Temperature page.

Cromwell's average annual precipitation is 1303 mm (51 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 620 mm (24 in), evenly distributed across the year with no extreme wet or dry seasons.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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