Alamosa, CO vs Seattle, WA

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

Alamosa is cooler than Seattle (42.6°F vs 53.8°F annual avg) and drier than it (7.3 in vs 36.5 in per year). Alamosa has a Semi-arid (cold) climate; Seattle a Warm-summer Mediterranean climate.

Alamosa, CO

Annual avg
42.6°F
Annual precip
7.3 in
Warmest month
July (82.9°F)
Coldest month
January (-0.4°F)
Annual swing
47.9°F
Semi-arid (cold) BSk USDA Zone 5a

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

Alamosa

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 Alamosa Seattle
High Low Precip High Low Precip
January 35.3°F -0.4°F 0.39 in 48.6°F 36.8°F 5.21 in
February 42.6°F 7.0°F 0.26 in 50.7°F 36.8°F 3.71 in
March 52.8°F 17.1°F 0.46 in 54.8°F 39.4°F 3.94 in
April 59.4°F 25.5°F 0.53 in 59.8°F 43.6°F 2.89 in
May 69.2°F 33.9°F 0.65 in 66.5°F 49.3°F 1.98 in
June 79.4°F 41.7°F 0.26 in 71.2°F 54.0°F 1.22 in
July 82.9°F 47.7°F 1.16 in 77.3°F 57.5°F 0.56 in
August 80.4°F 45.1°F 1.43 in 77.4°F 58.1°F 0.83 in
September 74.9°F 37.1°F 0.94 in 71.7°F 53.9°F 1.37 in
October 64.1°F 25.2°F 0.59 in 61.0°F 46.4°F 3.49 in
November 50.5°F 12.6°F 0.36 in 53.0°F 39.9°F 5.80 in
December 37.3°F 1.6°F 0.23 in 47.8°F 36.2°F 5.49 in
Alamosa overview
Full climate profile
 Seattle overview
Full climate profile