Hayden, CO vs Seattle, WA

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

Hayden is cooler than Seattle (43.7°F vs 53.8°F annual avg) and drier than it (18.4 in vs 36.5 in per year). Hayden has a Warm-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Hayden, CO

Annual avg
43.7°F
Annual precip
18.4 in
Warmest month
July (85.8°F)
Coldest month
January (8.1°F)
Annual swing
48.7°F
Warm-summer humid continental Dfb USDA Zone 6a

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

Hayden

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 Hayden Seattle
High Low Precip High Low Precip
January 30.1°F 8.1°F 1.80 in 48.6°F 36.8°F 5.21 in
February 35.0°F 12.1°F 1.44 in 50.7°F 36.8°F 3.71 in
March 47.2°F 21.2°F 1.38 in 54.8°F 39.4°F 3.94 in
April 58.2°F 28.8°F 2.15 in 59.8°F 43.6°F 2.89 in
May 68.5°F 36.4°F 1.83 in 66.5°F 49.3°F 1.98 in
June 79.4°F 43.0°F 1.06 in 71.2°F 54.0°F 1.22 in
July 85.8°F 49.8°F 1.09 in 77.3°F 57.5°F 0.56 in
August 83.5°F 48.6°F 1.27 in 77.4°F 58.1°F 0.83 in
September 75.3°F 40.4°F 1.67 in 71.7°F 53.9°F 1.37 in
October 61.6°F 29.7°F 1.57 in 61.0°F 46.4°F 3.49 in
November 45.4°F 19.7°F 1.49 in 53.0°F 39.9°F 5.80 in
December 31.3°F 9.5°F 1.66 in 47.8°F 36.2°F 5.49 in
Hayden overview
Full climate profile
 Seattle overview
Full climate profile