Aspen, CO vs Phoenix, AZ

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

Aspen is cooler than Phoenix (40.6°F vs 72.5°F annual avg) and wetter than it (24.5 in vs 8.9 in per year). Aspen has a Warm-summer humid continental climate; Phoenix a Desert (hot) climate.

Aspen, CO

Annual avg
40.6°F
Annual precip
24.5 in
Warmest month
July (75.5°F)
Coldest month
January (9.9°F)
Annual swing
40.9°F
Warm-summer humid continental Dfb USDA Zone 6a

Phoenix, AZ

Annual avg
72.5°F
Annual precip
8.9 in
Warmest month
July (104.0°F)
Coldest month
December (42.7°F)
Annual swing
39.1°F
Pleasant months
2 / 12
Desert (hot) BWh USDA Zone 9b

Best months to visit each city

Aspen

J
F
M
A
M
J
J
A
S
O
N
D

Phoenix

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month Aspen Phoenix
High Low Precip High Low Precip
January 32.0°F 9.9°F 1.93 in 65.4°F 44.1°F 1.17 in
February 35.3°F 12.5°F 2.23 in 68.1°F 46.1°F 1.21 in
March 42.7°F 19.8°F 2.59 in 75.0°F 50.9°F 1.09 in
April 49.7°F 26.6°F 2.68 in 82.5°F 56.6°F 0.35 in
May 60.0°F 35.0°F 2.17 in 91.5°F 64.7°F 0.19 in
June 70.6°F 42.2°F 1.06 in 101.5°F 72.7°F 0.03 in
July 75.5°F 48.1°F 1.97 in 104.0°F 80.8°F 0.81 in
August 73.1°F 47.1°F 1.75 in 102.5°F 80.5°F 0.96 in
September 66.9°F 40.0°F 1.89 in 97.5°F 74.7°F 0.71 in
October 55.2°F 29.8°F 2.09 in 86.3°F 62.7°F 0.67 in
November 41.6°F 19.4°F 2.09 in 74.0°F 50.8°F 0.90 in
December 31.9°F 10.3°F 2.00 in 63.9°F 42.7°F 0.81 in
Aspen overview
Full climate profile
 Phoenix overview
Full climate profile