Sun Valley, ID vs Seattle, WA

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

Sun Valley is cooler than Seattle (40.2°F vs 53.8°F annual avg) and drier than it (17.3 in vs 36.5 in per year). Sun Valley has a Mediterranean continental (warm summer) climate; Seattle a Warm-summer Mediterranean climate.

Sun Valley, ID

Annual avg
40.2°F
Annual precip
17.3 in
Warmest month
July (80.0°F)
Coldest month
January (8.0°F)
Annual swing
43°F
Mediterranean continental (warm summer) Dsb 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

Sun Valley

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 Sun Valley Seattle
High Low Precip High Low Precip
January 31.3°F 8.0°F 2.25 in 48.6°F 36.8°F 5.21 in
February 35.0°F 11.1°F 1.88 in 50.7°F 36.8°F 3.71 in
March 42.6°F 18.7°F 1.76 in 54.8°F 39.4°F 3.94 in
April 51.9°F 26.9°F 1.17 in 59.8°F 43.6°F 2.89 in
May 61.6°F 34.7°F 1.78 in 66.5°F 49.3°F 1.98 in
June 69.7°F 39.9°F 1.26 in 71.2°F 54.0°F 1.22 in
July 80.0°F 45.1°F 0.55 in 77.3°F 57.5°F 0.56 in
August 78.7°F 43.5°F 0.50 in 77.4°F 58.1°F 0.83 in
September 69.0°F 36.1°F 1.01 in 71.7°F 53.9°F 1.37 in
October 55.9°F 27.7°F 1.40 in 61.0°F 46.4°F 3.49 in
November 41.2°F 17.4°F 1.21 in 53.0°F 39.9°F 5.80 in
December 30.3°F 9.2°F 2.57 in 47.8°F 36.2°F 5.49 in
Sun Valley overview
Full climate profile
 Seattle overview
Full climate profile