Denver, CO vs Seattle, WA

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

Denver is cooler than Seattle (51.4°F vs 53.8°F annual avg) and drier than it (15.4 in vs 36.5 in per year). Denver has a Semi-arid (cold) climate; Seattle a Warm-summer Mediterranean climate.

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

Seattle, WA

Annual avg
53.8°F
Annual precip
36.5 in
Warmest month
August (77.4°F)
Coldest month
December (36.2°F)
Annual swing
25.8°F
Pleasant months
4 / 12
Warm-summer Mediterranean Csb USDA Zone 9a

Best months to visit each city

Denver

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

Seattle

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

Month-by-month comparison

Month Denver Seattle
High Low Precip High Low Precip
January 46.5°F 17.6°F 0.46 in 48.6°F 36.8°F 5.21 in
February 47.5°F 19.3°F 0.53 in 50.7°F 36.8°F 3.71 in
March 56.4°F 27.1°F 1.12 in 54.8°F 39.4°F 3.94 in
April 62.5°F 33.7°F 1.67 in 59.8°F 43.6°F 2.89 in
May 71.7°F 43.4°F 2.29 in 66.5°F 49.3°F 1.98 in
June 84.1°F 52.9°F 1.68 in 71.2°F 54.0°F 1.22 in
July 90.2°F 59.3°F 2.12 in 77.3°F 57.5°F 0.56 in
August 87.9°F 57.2°F 1.83 in 77.4°F 58.1°F 0.83 in
September 80.1°F 48.2°F 1.51 in 71.7°F 53.9°F 1.37 in
October 66.7°F 35.7°F 0.98 in 61.0°F 46.4°F 3.49 in
November 54.8°F 25.5°F 0.70 in 53.0°F 39.9°F 5.80 in
December 45.9°F 17.7°F 0.47 in 47.8°F 36.2°F 5.49 in
Denver overview
Full climate profile
 Seattle overview
Full climate profile