Phoenix, AZ vs Chicago, IL

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

Phoenix is warmer than Chicago (72.5°F vs 50.8°F annual avg) and wetter than it (8.9 in vs 0 in per year). Phoenix has a Desert (hot) climate; Chicago a Desert (cold) climate.

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

Chicago, IL

Annual avg
50.8°F
Annual precip
0 in
Warmest month
July (81.0°F)
Coldest month
January (20.1°F)
Annual swing
48.1°F
Pleasant months
4 / 12
Desert (cold) BWk USDA Zone 7b

Best months to visit each city

Phoenix

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

Chicago

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

Month-by-month comparison

Month Phoenix Chicago
High Low Precip High Low Precip
January 65.4°F 44.1°F 1.17 in 31.9°F 20.1°F — in
February 68.1°F 46.1°F 1.21 in 35.7°F 23.1°F — in
March 75.0°F 50.9°F 1.09 in 44.9°F 30.9°F — in
April 82.5°F 56.6°F 0.35 in 55.2°F 40.4°F — in
May 91.5°F 64.7°F 0.19 in 65.7°F 50.1°F — in
June 101.5°F 72.7°F 0.03 in 75.8°F 60.0°F — in
July 104.0°F 80.8°F 0.81 in 81.0°F 67.3°F — in
August 102.5°F 80.5°F 0.96 in 80.0°F 67.4°F — in
September 97.5°F 74.7°F 0.71 in 73.2°F 60.2°F — in
October 86.3°F 62.7°F 0.67 in 60.9°F 47.7°F — in
November 74.0°F 50.8°F 0.90 in 48.5°F 36.4°F — in
December 63.9°F 42.7°F 0.81 in 36.6°F 25.2°F — in
Phoenix overview
Full climate profile
 Chicago overview
Full climate profile