Bothell (WA) Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Bothell, Washington State, 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.
Bothell is known for its substantial rain/snowfall, with annual precipitation reaching 1074 mm (42 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, November receives substantial rainfall, averaging 169 mm (6.7 in) of precipitation, recorded across 21 rainy days.
In contrast, the driest month, July brings less rainfall, with 18 mm (0.7 in) over 6 rainy days.
November, the wettest month, has a maximum daytime temperature of 11°C (52°F). The city receives 73 hours of sunshine in this period. During the driest month July you can expect a temperature of 25°C (77°F). For more detailed insights into the city's temperatures, visit our Bothell Temperature page.
Annual Rainfall in the United States of America: City Comparison
The map below shows the annual precipitation across the United States of America. You can also select the different months in case you are interested in a specific month.
heavy rainfall
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moderate
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Bothell vs World: Rainfall Compared
Bothell's average annual precipitation is 1074 mm (42 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
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.
- 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 Bothell (WA)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Bothell (WA) Climate page.
