Imperial, CA vs Phoenix, AZ

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

Imperial is about the same temperature as Phoenix (73.7°F vs 72.5°F annual avg) and drier than it (2.4 in vs 8.9 in per year). Both cities share a Desert (hot) climate (BWh).

Imperial, CA

Annual avg
73.7°F
Annual precip
2.4 in
Warmest month
July (107.8°F)
Coldest month
December (41.2°F)
Annual swing
38.7°F
Desert (hot) BWh USDA Zone 9b

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

Imperial

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 Imperial Phoenix
High Low Precip High Low Precip
January 70.5°F 41.5°F 0.41 in 65.4°F 44.1°F 1.17 in
February 73.7°F 45.2°F 0.38 in 68.1°F 46.1°F 1.21 in
March 80.1°F 50.6°F 0.29 in 75.0°F 50.9°F 1.09 in
April 86.3°F 55.5°F 0.08 in 82.5°F 56.6°F 0.35 in
May 94.3°F 62.1°F 0.07 in 91.5°F 64.7°F 0.19 in
June 103.5°F 70.2°F 0.00 in 101.5°F 72.7°F 0.03 in
July 107.8°F 78.4°F 0.11 in 104.0°F 80.8°F 0.81 in
August 107.7°F 79.4°F 0.15 in 102.5°F 80.5°F 0.96 in
September 102.2°F 72.2°F 0.18 in 97.5°F 74.7°F 0.71 in
October 90.4°F 60.0°F 0.19 in 86.3°F 62.7°F 0.67 in
November 78.3°F 48.4°F 0.18 in 74.0°F 50.8°F 0.90 in
December 68.7°F 41.2°F 0.34 in 63.9°F 42.7°F 0.81 in
Imperial overview
Full climate profile
 Phoenix overview
Full climate profile