Castle Rock, WA vs Denver, CO

Side-by-side comparison of monthly climate normals (NOAA 1991-2020).

Castle Rock is about the same temperature as Denver (53.2°F vs 51.4°F annual avg) and wetter than it (48.1 in vs 15.4 in per year). Castle Rock has a Warm-summer Mediterranean climate; Denver a Semi-arid (cold) climate.

Castle Rock, WA

Annual avg
53.2°F
Annual precip
48.1 in
Warmest month
August (80.4°F)
Coldest month
February (34.7°F)
Annual swing
26.2°F
Pleasant months
1 / 12
Warm-summer Mediterranean Csb USDA Zone 8b

Denver, CO

Annual avg
51.4°F
Annual precip
15.4 in
Warmest month
July (90.2°F)
Coldest month
January (17.6°F)
Annual swing
43°F
Semi-arid (cold) BSk USDA Zone 7a

Best months to visit each city

Castle Rock

J
F
M
A
M
J
J
A
S
O
N
D

Denver

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month Castle Rock Denver
High Low Precip High Low Precip
January 47.7°F 35.1°F 6.53 in 46.5°F 17.6°F 0.46 in
February 52.0°F 34.7°F 4.81 in 47.5°F 19.3°F 0.53 in
March 56.9°F 37.5°F 4.91 in 56.4°F 27.1°F 1.12 in
April 62.1°F 40.4°F 4.08 in 62.5°F 33.7°F 1.67 in
May 68.8°F 45.3°F 3.11 in 71.7°F 43.4°F 2.29 in
June 72.9°F 49.5°F 2.03 in 84.1°F 52.9°F 1.68 in
July 79.3°F 53.4°F 0.63 in 90.2°F 59.3°F 2.12 in
August 80.4°F 53.3°F 0.97 in 87.9°F 57.2°F 1.83 in
September 75.7°F 49.6°F 2.29 in 80.1°F 48.2°F 1.51 in
October 64.0°F 44.1°F 4.38 in 66.7°F 35.7°F 0.98 in
November 53.0°F 38.6°F 7.24 in 54.8°F 25.5°F 0.70 in
December 46.6°F 34.8°F 7.14 in 45.9°F 17.7°F 0.47 in
Castle Rock overview
Full climate profile
 Denver overview
Full climate profile