The climate in Boulder during March can be summarized as warm and dry.
March is in the fall / autumn in Boulder and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 16°C (60°F) is normal.
Daytime temperature | 29.3°C 84.7°F |
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Nightly temperature | 15.5°C 59.9°F |
Average temperature | 22.4°C 72.3°F |
Daily sunshine | 9.2 hrs |
Avg rainfall | 23 mm 0.9 ins |
Rainy days | 7 days |
Sea temperature | 22.8°C 73.1°F |
Humidity | 40% |
Windspeed | 14kph 9 mph |
On average March is the 6th driest month of the year in Boulder with around 23mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Boulder in March 2025.
Hottest month: | January | 32.9°C 91.2°F |
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Driest month: | September | 16mm 0.6ins |
Sunniest month: | December | 11.6hrs |
Coldest month: | July | 15.8°C 60.4°F |
Wettest month: | June | 37mm 1.5ins |