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Rocky Mountain National Park › Best time to climb

When to climb at Rocky Mountain National Park

The best months for bouldering at Rocky Mountain National Park are October: the coolest, driest spell of the year, when the rock has the best friction. On average, May to August are too wet and November to March are too cold.

Can you climb there today?Today's answer, hour by hour, and the week ahead.

Month by month

MonthDry daysHigh / lowRainVerdict
January18 of 31-5° / -15°57 mmCold
February17 of 28-2° / -13°47 mmCold
March18 of 310° / -12°66 mmCold
April18 of 304° / -9°68 mmGood
May15 of 319° / -4°87 mmWet
June13 of 3017° / 3°96 mmWet
July13 of 3121° / 5°92 mmWet
August14 of 3120° / 6°100 mmWet
September18 of 3017° / 2°62 mmGood
October23 of 3111° / -3°39 mmBest
November23 of 303° / -9°33 mmCold
December22 of 310° / -10°37 mmCold

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Questions

When is the best time to boulder at Rocky Mountain National Park?

The best months for bouldering at Rocky Mountain National Park are October: the coolest, driest spell of the year, when the rock has the best friction. On average, May to August are too wet and November to March are too cold.

What's the weather like at Rocky Mountain National Park in October?

Highs around 11 °C and lows around -3 °C, with about 8 days of 1 mm of rain or more and 39 mm in all, averaged over 2023 to 2025.

Which month is wettest at Rocky Mountain National Park?

July, with about 18 rainy days and 92 mm on average. Most rock dries within a day after a shower, but cracks and pockets can seep for longer.