Boulder

What is the climate like in Boulder?

The best time to visit Boulder is typically June – October, with trip comfort peaking in September (7.9/10). Boulder is warmest in July, when daily highs average 83°F (28°C), and coolest in January, when lows fall to about 16°F (-9°C). The wettest month is typically May and the driest is December; the year sees roughly 27 in of precipitation.

• Best time to visitJune – October — comfort peaks in September (7.9/10)
• Warmest monthJuly — average high 83°F (28°C)
• Coolest monthJanuary — average low 16°F (-9°C)
• Wettest monthMay (5.0 in)
• Driest monthDecember (1.0 in)
• Annual precipitation27 in