Bothell (WA) Rainfall & Precipitation: Monthly Averages and Year-Round Insights
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.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Significant seasonal changes in precipitation occur throughout the year. During the wet season, November receives substantial rainfall, averaging 169 mm of precipitation, recorded across 21 rainy days.
In contrast, the drier season, July brings less rainfall, with 18 mm over 6 rainy days.November, the wettest month, has a maximum daytime temperature of 11°C. The city receives 73 hours of sunshine in this period. During the driest month July you can expect a temperature of 25°C. For more detailed insights into the city’s temperatures, visit our Bothell Temperature page.
Annual Precipitation in the United States of America
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
low
almost none
Amsterdam Precipitation Compared World Wide
Bothell’s average annual precipitation is 1074 mm. Let’s compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm of rainfall annually, with precipitation evenly distributed throughout the year.
Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.
Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.
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 Bothell (WA)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Bothell (WA) Climate page.
Current rainfall in Bothell (WA)
