Philadelphia, PA vs Phoenix, AZ

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

Philadelphia is cooler than Phoenix (57.7°F vs 72.5°F annual avg) and wetter than it (50.7 in vs 8.9 in per year). Philadelphia has a Humid subtropical climate; Phoenix a Desert (hot) climate.

Philadelphia, PA

Annual avg
57.7°F
Annual precip
50.7 in
Warmest month
July (89.3°F)
Coldest month
January (27.8°F)
Annual swing
45.7°F
Pleasant months
2 / 12
Humid subtropical Cfa USDA Zone 8a

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

Philadelphia

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 Philadelphia Phoenix
High Low Precip High Low Precip
January 41.6°F 27.8°F 3.61 in 65.4°F 44.1°F 1.17 in
February 44.9°F 29.6°F 3.34 in 68.1°F 46.1°F 1.21 in
March 53.5°F 36.4°F 4.54 in 75.0°F 50.9°F 1.09 in
April 65.9°F 46.3°F 4.00 in 82.5°F 56.6°F 0.35 in
May 75.7°F 56.3°F 4.06 in 91.5°F 64.7°F 0.19 in
June 84.9°F 65.9°F 4.77 in 101.5°F 72.7°F 0.03 in
July 89.3°F 71.4°F 4.75 in 104.0°F 80.8°F 0.81 in
August 87.2°F 69.5°F 4.95 in 102.5°F 80.5°F 0.96 in
September 80.3°F 62.7°F 4.88 in 97.5°F 74.7°F 0.71 in
October 68.1°F 51.1°F 4.15 in 86.3°F 62.7°F 0.67 in
November 56.4°F 41.3°F 3.37 in 74.0°F 50.8°F 0.90 in
December 46.5°F 33.2°F 4.27 in 63.9°F 42.7°F 0.81 in
Philadelphia overview
Full climate profile
 Phoenix overview
Full climate profile