Waltham Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Waltham. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Generally, Waltham receives mid-range precipitation levels, with 768 mm annually.

Monthly Precipitation Levels

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

Despite minor fluctuations, Waltham enjoys fairly consistent precipitation throughout the year. In November, you can expect around 77 mm of precipitation, while in March, Waltham receives about 49 mm.

November, the wettest month, has a maximum daytime temperature of 12°C. The city receives 70 hours of sunshine in this period. During the driest month March you can expect a temperature of 11°C. For more detailed insights into the city’s temperatures, visit our Waltham Temperature page.

Annual Precipitation in the United Kingdom

The map below shows the annual precipitation across the United Kingdom. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Waltham’s average annual precipitation is 768 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

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

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

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

How is Precipitation Measured?

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.

Sea vs. Land Precipitation

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

For more detailed information about Waltham’s weather, including sunshine hours, humidity levels, and temperature data, visit our Waltham Climate page.