Historical Weather Records & Monthly Climate for Castle Rock, CO
All-Time High
97°F
All-Time Low
-48°F
Max Daily Snow
17.7"
Max Wind Gust
63 mph
Monthly Climate Averages
Based on 30 years of historical data (1994 - 2023)
| Month | High (°F) | Low (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|
| January | 40° | 14° | 0.71" | 5.22" |
| February | 41° | 15° | 0.81" | 5.82" |
| March | 49° | 23° | 1.78" | 10.68" |
| April | 55° | 29° | 2.7" | 12.53" |
| May | 66° | 40° | 3.4" | 3.84" |
| June | 78° | 51° | 2.13" | 0.12" |
| July | 83° | 57° | 2.23" | 0 |
| August | 81° | 56° | 1.8" | 0 |
| September | 75° | 48° | 1.37" | 0.72" |
| October | 62° | 36° | 1.36" | 4.95" |
| November | 49° | 25° | 0.81" | 5.16" |
| December | 39° | 15° | 0.73" | 5.27" |
Historical Weather Extremes
Based on 80+ years of archive data (1940 - 2024)
🔥
Longest Heatwave
14 Days
2012
Consecutive days ≥ 90°F
🧊
Deepest Freeze
14 Days
1974
Consecutive days ≤ 32°F
🏜️
Longest Drought
43 Days
1956
Consecutive days w/o rain
☔
Wettest Month
8.44"
May 2015
Most rainfall in one month
⛄
Snowiest Month
34.67"
March 1983
Most snowfall in one month
More Historical Climate Data for Cities in
CO