Bend (OR) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Bend, Oregon, United States of America. This average is based on long-term data collected between 1990 and 2020. Now, let's break down all the details for a clearer picture.

Bend has a relatively dry climate with low precipitation, averaging 274 mm (11 in) of rain/snowfall annually. It experiences a distinct dry season during certain months. Refer to our detailed charts below to see the seasonal variation.

Monthly Precipitation Levels

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

Bend can be quite wet during December, receiving approximately 54 mm (2.1 in) of precipitation over 13 snowy/rainy days.

In contrast July, experiences much drier conditions, with 7.3 mm (0.3 in) of rainfall, spread across 4 rainy days.

December, the wettest month, has a maximum daytime temperature of 5°C (41°F). During the driest month July you can expect a temperature of 29°C (84°F). For more detailed insights into the city's temperatures, visit our Bend Temperature page.

Bend's average annual precipitation is 274 mm (11 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 620 mm (24 in), evenly distributed across the year with no extreme wet or dry seasons.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

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

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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 Bend (OR):

• 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.

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