Grandmother Mountain › Best time to climb
When to climb at Grandmother Mountain
The best months for bouldering at Grandmother Mountain are March to April and October to November: the coolest, driest spell of the year, when the rock has the best friction. On average, July to August are too wet and January is 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 | 2° / -7° | 129 mm | Cold |
| February | 18 of 28 | 7° / -3° | 90 mm | Good |
| March | 20 of 31 | 10° / -1° | 128 mm | Best |
| April | 17 of 30 | 14° / 4° | 107 mm | Best |
| May | 15 of 31 | 17° / 8° | 138 mm | Good |
| June | 15 of 30 | 21° / 12° | 88 mm | Good |
| July | 12 of 31 | 24° / 15° | 149 mm | Wet |
| August | 14 of 31 | 22° / 13° | 126 mm | Wet |
| September | 15 of 30 | 19° / 10° | 202 mm | Good |
| October | 24 of 31 | 14° / 5° | 46 mm | Best |
| November | 23 of 30 | 9° / 0° | 45 mm | Best |
| December | 19 of 31 | 5° / -4° | 125 mm | Good |
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When is the best time to boulder at Grandmother Mountain?
The best months for bouldering at Grandmother Mountain are March to April and October to November: the coolest, driest spell of the year, when the rock has the best friction. On average, July to August are too wet and January is too cold.
What's the weather like at Grandmother Mountain in March?
Highs around 10 °C and lows around -1 °C, with about 11 days of 1 mm of rain or more and 128 mm in all, averaged over 2023 to 2025.
Which month is wettest at Grandmother Mountain?
July, with about 19 rainy days and 149 mm on average. Most rock dries within a day after a shower, but cracks and pockets can seep for longer.