Average monthly snow and rainfall in Boulder (CO)
The mean monthly precipitation over the year in Boulder (Colorado), including rain, snow, hail.
- Boulder has dry periods in January and November.
- On average, May is the wettest month with 80 mm of precipitation.
- On average, January is the driest month with 16 mm of precipitation.
- The average amount of annual precipitation is 513 mm.
Weather Forecasts for Boulder (CO)
partly cloudy and no rain
broken clouds and rain
broken clouds and chance of rain