Sisters, OR vs Seattle, WA

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

Sisters is cooler than Seattle (45.5°F vs 53.8°F annual avg) and drier than it (15.2 in vs 36.5 in per year). Sisters has a Mediterranean continental (warm summer) climate; Seattle a Warm-summer Mediterranean climate.

Sisters, OR

Annual avg
45.5°F
Annual precip
15.2 in
Warmest month
July (85.6°F)
Coldest month
December (19.8°F)
Annual swing
34.9°F
Mediterranean continental (warm summer) Dsb USDA Zone 7a

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

Sisters

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 Sisters Seattle
High Low Precip High Low Precip
January 40.8°F 20.8°F 1.74 in 48.6°F 36.8°F 5.21 in
February 43.9°F 21.9°F 1.36 in 50.7°F 36.8°F 3.71 in
March 50.6°F 25.2°F 1.31 in 54.8°F 39.4°F 3.94 in
April 57.1°F 28.8°F 0.77 in 59.8°F 43.6°F 2.89 in
May 66.3°F 34.4°F 1.53 in 66.5°F 49.3°F 1.98 in
June 74.2°F 39.0°F 1.01 in 71.2°F 54.0°F 1.22 in
July 85.6°F 43.4°F 0.55 in 77.3°F 57.5°F 0.56 in
August 84.5°F 42.4°F 0.60 in 77.4°F 58.1°F 0.83 in
September 75.8°F 36.0°F 0.54 in 71.7°F 53.9°F 1.37 in
October 61.3°F 28.6°F 1.09 in 61.0°F 46.4°F 3.49 in
November 47.4°F 24.5°F 2.17 in 53.0°F 39.9°F 5.80 in
December 39.3°F 19.8°F 2.53 in 47.8°F 36.2°F 5.49 in
Sisters overview
Full climate profile
 Seattle overview
Full climate profile