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When to climb at San Bernardino Pass
The best months for bouldering at San Bernardino Pass are October: the coolest, driest spell of the year, when the rock has the best friction. On average, May to September are too wet and November to April are too cold.
Can you climb there today?Today's answer, hour by hour, and the week ahead.Month by month
| Month | Dry days | High / low | Rain | Verdict |
|---|---|---|---|---|
| January | 18 of 31 | -3° / -11° | 97 mm | Cold |
| February | 19 of 28 | 0° / -8° | 73 mm | Cold |
| March | 17 of 31 | 0° / -7° | 153 mm | Cold |
| April | 18 of 30 | 3° / -5° | 130 mm | Cold |
| May | 12 of 31 | 7° / -1° | 149 mm | Wet |
| June | 10 of 30 | 14° / 5° | 128 mm | Wet |
| July | 11 of 31 | 15° / 6° | 120 mm | Wet |
| August | 14 of 31 | 16° / 7° | 162 mm | Wet |
| September | 14 of 30 | 11° / 3° | 190 mm | Wet |
| October | 16 of 31 | 7° / 0° | 203 mm | Best |
| November | 19 of 30 | 0° / -8° | 90 mm | Cold |
| December | 22 of 31 | -1° / -9° | 72 mm | Cold |
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When is the best time to boulder at San Bernardino Pass?
The best months for bouldering at San Bernardino Pass are October: the coolest, driest spell of the year, when the rock has the best friction. On average, May to September are too wet and November to April are too cold.
What's the weather like at San Bernardino Pass in October?
Highs around 7 °C and lows around 0 °C, with about 15 days of 1 mm of rain or more and 203 mm in all, averaged over 2023 to 2025.
Which month is wettest at San Bernardino Pass?
July, with about 20 rainy days and 120 mm on average. Most rock dries within a day after a shower, but cracks and pockets can seep for longer.