Idaho City, ID vs Seattle, WA

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

Idaho City is cooler than Seattle (43.9°F vs 53.8°F annual avg) and drier than it (21.1 in vs 36.5 in per year). Idaho City has a Mediterranean continental (warm summer) climate; Seattle a Warm-summer Mediterranean climate.

Idaho City, ID

Annual avg
43.9°F
Annual precip
21.1 in
Warmest month
July (87.1°F)
Coldest month
January (13.5°F)
Annual swing
42°F
Mediterranean continental (warm summer) Dsb USDA Zone 6b

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

Idaho City

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 Idaho City Seattle
High Low Precip High Low Precip
January 35.3°F 13.5°F 3.16 in 48.6°F 36.8°F 5.21 in
February 40.5°F 15.9°F 1.94 in 50.7°F 36.8°F 3.71 in
March 47.8°F 22.0°F 2.26 in 54.8°F 39.4°F 3.94 in
April 56.0°F 27.5°F 1.59 in 59.8°F 43.6°F 2.89 in
May 66.4°F 34.5°F 2.11 in 66.5°F 49.3°F 1.98 in
June 75.3°F 40.3°F 1.09 in 71.2°F 54.0°F 1.22 in
July 87.1°F 45.6°F 0.32 in 77.3°F 57.5°F 0.56 in
August 86.3°F 43.6°F 0.44 in 77.4°F 58.1°F 0.83 in
September 76.5°F 35.6°F 0.77 in 71.7°F 53.9°F 1.37 in
October 61.5°F 27.5°F 1.50 in 61.0°F 46.4°F 3.49 in
November 44.2°F 20.7°F 2.41 in 53.0°F 39.9°F 5.80 in
December 34.6°F 13.9°F 3.53 in 47.8°F 36.2°F 5.49 in
Idaho City overview
Full climate profile
 Seattle overview
Full climate profile