Charles City, IA vs Seattle, WA

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

Charles City is cooler than Seattle (46.5°F vs 53.8°F annual avg) and similar rainfall to it (37.7 in vs 36.5 in per year). Charles City has a Hot-summer humid continental climate; Seattle a Warm-summer Mediterranean climate.

Charles City, IA

Annual avg
46.5°F
Annual precip
37.7 in
Warmest month
July (82.0°F)
Coldest month
January (8.6°F)
Annual swing
55.4°F
Pleasant months
3 / 12
Hot-summer humid continental Dfa USDA Zone 6a

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

Charles City

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 Charles City Seattle
High Low Precip High Low Precip
January 24.6°F 8.6°F 1.01 in 48.6°F 36.8°F 5.21 in
February 29.5°F 12.6°F 1.14 in 50.7°F 36.8°F 3.71 in
March 43.1°F 25.3°F 1.93 in 54.8°F 39.4°F 3.94 in
April 58.1°F 36.7°F 3.73 in 59.8°F 43.6°F 2.89 in
May 69.5°F 48.5°F 5.06 in 66.5°F 49.3°F 1.98 in
June 78.8°F 58.6°F 6.13 in 71.2°F 54.0°F 1.22 in
July 82.0°F 62.1°F 4.92 in 77.3°F 57.5°F 0.56 in
August 79.6°F 59.7°F 4.28 in 77.4°F 58.1°F 0.83 in
September 73.4°F 51.3°F 3.82 in 71.7°F 53.9°F 1.37 in
October 60.3°F 38.8°F 2.58 in 61.0°F 46.4°F 3.49 in
November 43.7°F 26.3°F 1.74 in 53.0°F 39.9°F 5.80 in
December 29.8°F 15.1°F 1.38 in 47.8°F 36.2°F 5.49 in
Charles City overview
Full climate profile
 Seattle overview
Full climate profile