Mount Sunapee (NH) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Mount Sunapee, New Hampshire, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's now guide you through the details for a complete overview.

Mount Sunapee has a notably wet climate with abundant precipitation, recording 1272 mm (50 in) of rain/snowfall per year.

Monthly Precipitation Levels

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

The climate in Mount Sunapee shows significant variation throughout the year. Expect 165 mm (6.5 in) of precipitation during the wettest month October, distributed over 13 rainy days.

In contrast, January offers drier and sunnier days, with around 75 mm (3 in) of snowfall over 12 snowy days.

October, the wettest month, has a maximum daytime temperature of 14°C (57°F). The city receives 183 hours of sunshine in this period. During the driest month January you can expect a temperature of -2°C (28°F). For more detailed insights into the city's temperatures, visit our Mount Sunapee Temperature page.

Mount Sunapee's average annual precipitation is 1272 mm (50 in). Let's compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.

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

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

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.

Precipitation has a very strong role in determining the local climate and ecosystem:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA, over 31.5 meters (103 feet) fell during the winter of 1972.

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