Dayton, TN vs Seattle, WA

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

Dayton is warmer than Seattle (58.4°F vs 53.8°F annual avg) and wetter than it (58.7 in vs 36.5 in per year). Dayton has a Humid subtropical climate; Seattle a Warm-summer Mediterranean climate.

Dayton, TN

Annual avg
58.4°F
Annual precip
58.7 in
Warmest month
July (87.6°F)
Coldest month
January (28.3°F)
Annual swing
39.5°F
Pleasant months
1 / 12
Humid subtropical Cfa USDA Zone 8a

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

Dayton

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 Dayton Seattle
High Low Precip High Low Precip
January 47.4°F 28.3°F 5.21 in 48.6°F 36.8°F 5.21 in
February 52.0°F 31.4°F 5.09 in 50.7°F 36.8°F 3.71 in
March 60.9°F 37.6°F 5.33 in 54.8°F 39.4°F 3.94 in
April 70.5°F 46.1°F 5.38 in 59.8°F 43.6°F 2.89 in
May 78.0°F 55.0°F 4.79 in 66.5°F 49.3°F 1.98 in
June 84.7°F 63.4°F 4.50 in 71.2°F 54.0°F 1.22 in
July 87.6°F 67.0°F 5.29 in 77.3°F 57.5°F 0.56 in
August 87.4°F 65.9°F 3.88 in 77.4°F 58.1°F 0.83 in
September 82.1°F 59.6°F 4.82 in 71.7°F 53.9°F 1.37 in
October 71.2°F 47.5°F 3.62 in 61.0°F 46.4°F 3.49 in
November 59.4°F 37.0°F 4.79 in 53.0°F 39.9°F 5.80 in
December 50.3°F 31.3°F 6.04 in 47.8°F 36.2°F 5.49 in
Dayton overview
Full climate profile
 Seattle overview
Full climate profile