Sister Bay, WI vs Seattle, WA

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

Sister Bay is cooler than Seattle (44.7°F vs 53.8°F annual avg) and drier than it (31 in vs 36.5 in per year). Sister Bay has a Warm-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Sister Bay, WI

Annual avg
44.7°F
Annual precip
31 in
Warmest month
July (79.6°F)
Coldest month
January (12.0°F)
Annual swing
49.3°F
Pleasant months
4 / 12
Warm-summer humid continental Dfb 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

Sister Bay

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 Sister Bay Seattle
High Low Precip High Low Precip
January 26.7°F 12.0°F 1.71 in 48.6°F 36.8°F 5.21 in
February 29.1°F 12.8°F 1.06 in 50.7°F 36.8°F 3.71 in
March 38.6°F 21.1°F 1.66 in 54.8°F 39.4°F 3.94 in
April 51.0°F 31.1°F 2.71 in 59.8°F 43.6°F 2.89 in
May 64.5°F 41.9°F 3.46 in 66.5°F 49.3°F 1.98 in
June 73.8°F 52.5°F 3.31 in 71.2°F 54.0°F 1.22 in
July 79.6°F 57.8°F 3.05 in 77.3°F 57.5°F 0.56 in
August 78.3°F 56.6°F 3.03 in 77.4°F 58.1°F 0.83 in
September 70.3°F 51.2°F 3.41 in 71.7°F 53.9°F 1.37 in
October 57.1°F 40.5°F 3.61 in 61.0°F 46.4°F 3.49 in
November 43.5°F 30.2°F 2.27 in 53.0°F 39.9°F 5.80 in
December 32.5°F 19.0°F 1.70 in 47.8°F 36.2°F 5.49 in
Sister Bay overview
Full climate profile
 Seattle overview
Full climate profile