Silverton, CO vs Seattle, WA

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

Silverton is cooler than Seattle (34.7°F vs 53.8°F annual avg) and drier than it (23.9 in vs 36.5 in per year). Silverton has a Subarctic climate; Seattle a Warm-summer Mediterranean climate.

Silverton, CO

Annual avg
34.7°F
Annual precip
23.9 in
Warmest month
July (74.7°F)
Coldest month
January (-5.9°F)
Annual swing
42.2°F
Subarctic Dfc USDA Zone 4b

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

Silverton

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 Silverton Seattle
High Low Precip High Low Precip
January 34.4°F -5.9°F 2.04 in 48.6°F 36.8°F 5.21 in
February 36.3°F -2.8°F 2.10 in 50.7°F 36.8°F 3.71 in
March 42.7°F 6.1°F 2.05 in 54.8°F 39.4°F 3.94 in
April 48.2°F 17.0°F 1.74 in 59.8°F 43.6°F 2.89 in
May 58.4°F 25.4°F 1.68 in 66.5°F 49.3°F 1.98 in
June 70.0°F 31.0°F 0.93 in 71.2°F 54.0°F 1.22 in
July 74.7°F 38.3°F 2.38 in 77.3°F 57.5°F 0.56 in
August 71.9°F 37.0°F 2.83 in 77.4°F 58.1°F 0.83 in
September 65.6°F 29.7°F 2.75 in 71.7°F 53.9°F 1.37 in
October 55.0°F 20.1°F 2.13 in 61.0°F 46.4°F 3.49 in
November 43.0°F 7.0°F 1.66 in 53.0°F 39.9°F 5.80 in
December 33.5°F -4.6°F 1.63 in 47.8°F 36.2°F 5.49 in
Silverton overview
Full climate profile
 Seattle overview
Full climate profile