Castlegar (BC) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Castlegar, British Columbia, Canada. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's break down all the details for a clearer picture.

Castlegar experiences significant rain/snowfall throughout the year, averaging 1022 mm (40 in) of precipitation annually.

Monthly Precipitation Levels

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

The climate in Castlegar shows significant variation throughout the year. Expect 119 mm (4.7 in) of precipitation during the wettest month November, distributed over 16 snowy/rainy days.

In contrast, August offers drier and sunnier days, with around 37 mm (1.5 in) of rainfall over 9 rainy days.

November, the wettest month, has a maximum daytime temperature of 2°C (36°F). During the driest month August you can expect a temperature of 25°C (77°F). For more detailed insights into the city's temperatures, visit our Castlegar Temperature page.

Annual Rainfall in Canada: City Comparison

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

Annual

Annual

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Legend

heavy rainfall

high

moderate

low

almost none

Heavy annual rainfall has been defined as more than 1000 mm (39 in) precipitation. High: 600 mm (24 in) to 1000 mm (39 in). Moderate: 250 mm (9.8 in) to 600 mm (24 in). Low: less than 250 mm (9.8 in).

Castlegar vs World: Rainfall Compared

Castlegar's average annual precipitation is 1022 mm (40 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm (25 in), evenly distributed across the year with no extreme wet or dry seasons.

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

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

Interesting weather facts

"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 Castlegar (BC)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Castlegar (BC) Climate page.

Current rainfall in Castlegar (BC)

10-Day Forecast