Can I climb todayCastle Rock State Park › Best time to climb
When to climb at Castle Rock State Park
The best months for bouldering at Castle Rock State Park are April and November to January: the coolest, driest spell of the year, when the rock has the best friction. On average, July to August are too hot. June and September are warm: climb early or late in the day.
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 | 21 of 31 | 11° / 3° | 194 mm | Best |
| February | 16 of 28 | 10° / 2° | 195 mm | Good |
| March | 17 of 31 | 11° / 2° | 201 mm | Good |
| April | 27 of 30 | 16° / 4° | 26 mm | Best |
| May | 28 of 31 | 20° / 6° | 29 mm | Good |
| June | 30 of 30 | 25° / 9° | 1 mm | Warm |
| July | 31 of 31 | 29° / 12° | 0 mm | Hot |
| August | 31 of 31 | 28° / 12° | 1 mm | Hot |
| September | 28 of 30 | 25° / 11° | 6 mm | Warm |
| October | 26 of 31 | 22° / 10° | 20 mm | Good |
| November | 21 of 30 | 15° / 6° | 111 mm | Best |
| December | 21 of 31 | 13° / 5° | 145 mm | Best |
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When is the best time to boulder at Castle Rock State Park?
The best months for bouldering at Castle Rock State Park are April and November to January: the coolest, driest spell of the year, when the rock has the best friction. On average, July to August are too hot. June and September are warm: climb early or late in the day.
What's the weather like at Castle Rock State Park in January?
Highs around 11 °C and lows around 3 °C, with about 10 days of 1 mm of rain or more and 194 mm in all, averaged over 2023 to 2025.
Which month is wettest at Castle Rock State Park?
March, with about 14 rainy days and 201 mm on average. Sandstone needs a day or two to dry after rain, so a wet month means fewer climbing days than the rain alone suggests.