Grand Junction, CO vs Phoenix, AZ

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

Grand Junction is cooler than Phoenix (54.6°F vs 72.5°F annual avg) and similar rainfall to it (11.4 in vs 8.9 in per year). Grand Junction has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

Grand Junction, CO

Annual avg
54.6°F
Annual precip
11.4 in
Warmest month
July (94.5°F)
Coldest month
January (19.4°F)
Annual swing
51.1°F
Pleasant months
1 / 12
Semi-arid (cold) BSk USDA Zone 7a

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

Grand Junction

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 Grand Junction Phoenix
High Low Precip High Low Precip
January 39.0°F 19.4°F 0.77 in 65.4°F 44.1°F 1.17 in
February 46.7°F 26.0°F 0.65 in 68.1°F 46.1°F 1.21 in
March 58.6°F 34.5°F 0.87 in 75.0°F 50.9°F 1.09 in
April 66.9°F 41.0°F 1.06 in 82.5°F 56.6°F 0.35 in
May 76.7°F 50.0°F 1.27 in 91.5°F 64.7°F 0.19 in
June 89.2°F 59.1°F 0.60 in 101.5°F 72.7°F 0.03 in
July 94.5°F 66.0°F 0.89 in 104.0°F 80.8°F 0.81 in
August 90.8°F 63.9°F 1.03 in 102.5°F 80.5°F 0.96 in
September 82.0°F 55.0°F 1.47 in 97.5°F 74.7°F 0.71 in
October 67.1°F 41.8°F 1.27 in 86.3°F 62.7°F 0.67 in
November 52.1°F 30.2°F 0.81 in 74.0°F 50.8°F 0.90 in
December 39.1°F 21.0°F 0.68 in 63.9°F 42.7°F 0.81 in
Grand Junction overview
Full climate profile
 Phoenix overview
Full climate profile