Harrison, ID vs Seattle, WA

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

Harrison is cooler than Seattle (46.5°F vs 53.8°F annual avg) and drier than it (28.5 in vs 36.5 in per year). Harrison has a Mediterranean continental (warm summer) climate; Seattle a Warm-summer Mediterranean climate.

Harrison, ID

Annual avg
46.5°F
Annual precip
28.5 in
Warmest month
August (83.0°F)
Coldest month
December (22.8°F)
Annual swing
38°F
Mediterranean continental (warm summer) Dsb USDA Zone 7b

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

Harrison

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 Harrison Seattle
High Low Precip High Low Precip
January 36.6°F 23.8°F 3.79 in 48.6°F 36.8°F 5.21 in
February 39.8°F 24.7°F 2.57 in 50.7°F 36.8°F 3.71 in
March 46.6°F 29.4°F 3.59 in 54.8°F 39.4°F 3.94 in
April 55.3°F 33.8°F 2.34 in 59.8°F 43.6°F 2.89 in
May 64.7°F 40.5°F 2.46 in 66.5°F 49.3°F 1.98 in
June 69.7°F 44.6°F 1.90 in 71.2°F 54.0°F 1.22 in
July 81.4°F 51.7°F 0.71 in 77.3°F 57.5°F 0.56 in
August 83.0°F 50.5°F 0.74 in 77.4°F 58.1°F 0.83 in
September 72.6°F 44.2°F 1.02 in 71.7°F 53.9°F 1.37 in
October 57.4°F 35.6°F 2.50 in 61.0°F 46.4°F 3.49 in
November 43.1°F 29.5°F 3.55 in 53.0°F 39.9°F 5.80 in
December 34.6°F 22.8°F 3.35 in 47.8°F 36.2°F 5.49 in
Harrison overview
Full climate profile
 Seattle overview
Full climate profile