Tomorrow in Boulder looks
sunny, with a high of 62°
and an overnight low of 35°.
Rain is unlikely (4% chance).
Winds top out near 4 mph,
and the UV index reaches 3 (low).
Yes - about 34 days a year carry measurable snowfall, concentrated October through May.
What is the rainiest month in Boulder?
May, at 4.6 inches (116 mm) over about 15 days. December is the driest month, at 22 mm (0.9 in).
What is the coldest month in Boulder?
January, with highs of 38°F (3°C) and lows near 17°F (-8°C). The coldest day in the 2015-2024 record fell to -24°F (-31°C).
Does it rain a lot in Boulder?
20.6 inches (524 mm) a year across 94 wet days - less than 82% of the cities we cover.
What is the best time to visit Boulder?
The best time to visit Boulder is generally August to October and June, when these are the warmest and brightest weeks of the year. Daytime temperatures in that window sit near 76°F (24°C), with rain on about 7 days a month. For the same question asked the other way round, see where else is warm in August.
Which month is warmest in Boulder?
July, averaging 85°F (30°C) by day and 59°F (15°C) overnight. The hottest single day in our 2015-2024 record for this location reached 98°F (37°C).