Boston Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Boston, Lincolnshire, United Kingdom. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's now guide you through the details for a complete overview.
Generally, Boston receives mid-range precipitation levels, with 723 mm (28 in) annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The wettest period in Boston occurs in June, which receives around 73 mm (2.9 in) of precipitation. During the driest month, February, Boston experiences moderate rainfall, totaling approximately 48 mm (1.9 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate.
June, the wettest month, has a maximum daytime temperature of 20°C (68°F). The city receives 192 hours of sunshine in this period. During the driest month February you can expect a temperature of 9°C (48°F). For more detailed insights into the city's temperatures, visit our Boston Temperature page.
Annual Rainfall in the United Kingdom: City Comparison
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.
heavy rainfall
high
moderate
low
almost none
Boston vs World: Rainfall Compared
Boston's average annual precipitation is 723 mm (28 in). Let's compare this to some popular worldwide tourist destinations:
Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
Climate change is affecting precipitation patterns worldwide, including Boston:
- 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.
- 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 Boston's weather, including sunshine hours, humidity levels, and temperature data, visit our Boston Climate page.
