Alton, UT vs Seattle, WA

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

Alton is cooler than Seattle (47.3°F vs 53.8°F annual avg) and drier than it (17.3 in vs 36.5 in per year). Alton has a Mediterranean continental (warm summer) climate; Seattle a Warm-summer Mediterranean climate.

Alton, UT

Annual avg
47.3°F
Annual precip
17.3 in
Warmest month
July (85.3°F)
Coldest month
December (17.8°F)
Annual swing
38.8°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

Alton

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 Alton Seattle
High Low Precip High Low Precip
January 41.3°F 17.9°F 2.03 in 48.6°F 36.8°F 5.21 in
February 43.4°F 19.4°F 2.07 in 50.7°F 36.8°F 3.71 in
March 51.5°F 24.4°F 1.51 in 54.8°F 39.4°F 3.94 in
April 60.0°F 29.0°F 0.82 in 59.8°F 43.6°F 2.89 in
May 69.4°F 35.2°F 0.87 in 66.5°F 49.3°F 1.98 in
June 80.5°F 43.0°F 0.41 in 71.2°F 54.0°F 1.22 in
July 85.3°F 51.2°F 1.17 in 77.3°F 57.5°F 0.56 in
August 83.1°F 50.1°F 1.87 in 77.4°F 58.1°F 0.83 in
September 75.9°F 42.9°F 1.70 in 71.7°F 53.9°F 1.37 in
October 64.1°F 33.5°F 1.80 in 61.0°F 46.4°F 3.49 in
November 51.2°F 24.3°F 1.22 in 53.0°F 39.9°F 5.80 in
December 41.0°F 17.8°F 1.83 in 47.8°F 36.2°F 5.49 in
Alton overview
Full climate profile
 Seattle overview
Full climate profile