Golden (CO) Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Golden, Colorado, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let’s break down all the details for a clearer picture.
On average, Golden receives a reasonable amount of rain/snowfall, with an annual precipitation of 512 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, May receives substantial rainfall, averaging 74 mm of precipitation, recorded across 12 rainy days.
In contrast, the drier season, January brings less snowfall, with 17 mm over 5 snowy days.May, the wettest month, has a maximum daytime temperature of 19°C. The city receives 290 hours of sunshine in this period. During the driest month January you can expect a temperature of 8°C. For more detailed insights into the city’s temperatures, visit our Golden 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.





Amsterdam Precipitation Compared World Wide
Golden’s average annual precipitation is 512 mm. Let’s compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.
Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.
Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.
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 Golden (CO)’s weather, including sunshine hours, humidity levels, and temperature data, visit our Golden (CO) Climate page.