Castalia, OH vs Seattle, WA

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

Castalia is about the same temperature as Seattle (52°F vs 53.8°F annual avg) and similar rainfall to it (34 in vs 36.5 in per year). Castalia has a Hot-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Castalia, OH

Annual avg
52°F
Annual precip
34 in
Warmest month
July (82.3°F)
Coldest month
January (21.8°F)
Annual swing
46.6°F
Pleasant months
3 / 12
Hot-summer humid continental Dfa 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

Castalia

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 Castalia Seattle
High Low Precip High Low Precip
January 34.4°F 21.8°F 1.90 in 48.6°F 36.8°F 5.21 in
February 37.0°F 23.4°F 1.77 in 50.7°F 36.8°F 3.71 in
March 45.0°F 30.9°F 2.56 in 54.8°F 39.4°F 3.94 in
April 57.3°F 41.3°F 3.76 in 59.8°F 43.6°F 2.89 in
May 68.5°F 53.2°F 3.25 in 66.5°F 49.3°F 1.98 in
June 78.1°F 63.4°F 3.67 in 71.2°F 54.0°F 1.22 in
July 82.3°F 67.2°F 3.55 in 77.3°F 57.5°F 0.56 in
August 80.5°F 65.8°F 3.02 in 77.4°F 58.1°F 0.83 in
September 74.5°F 58.9°F 3.07 in 71.7°F 53.9°F 1.37 in
October 63.0°F 47.6°F 2.72 in 61.0°F 46.4°F 3.49 in
November 50.1°F 36.8°F 2.64 in 53.0°F 39.9°F 5.80 in
December 39.3°F 27.8°F 2.12 in 47.8°F 36.2°F 5.49 in
Castalia overview
Full climate profile
 Seattle overview
Full climate profile