East Palo Alto, CA vs Phoenix, AZ

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

East Palo Alto is cooler than Phoenix (58.5°F vs 72.5°F annual avg) and wetter than it (15.1 in vs 8.9 in per year). East Palo Alto has a Semi-arid (cold) climate; Phoenix a Desert (hot) climate.

East Palo Alto, CA

Annual avg
58.5°F
Annual precip
15.1 in
Warmest month
September (79.6°F)
Coldest month
December (38.6°F)
Annual swing
19.5°F
Pleasant months
4 / 12
Semi-arid (cold) BSk USDA Zone 9a

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

East Palo Alto

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 East Palo Alto Phoenix
High Low Precip High Low Precip
January 57.8°F 39.0°F 2.95 in 65.4°F 44.1°F 1.17 in
February 60.7°F 41.3°F 3.18 in 68.1°F 46.1°F 1.21 in
March 65.5°F 43.6°F 2.19 in 75.0°F 50.9°F 1.09 in
April 69.6°F 45.3°F 0.97 in 82.5°F 56.6°F 0.35 in
May 73.3°F 49.5°F 0.44 in 91.5°F 64.7°F 0.19 in
June 78.5°F 52.7°F 0.10 in 101.5°F 72.7°F 0.03 in
July 79.4°F 55.7°F 0.00 in 104.0°F 80.8°F 0.81 in
August 78.7°F 55.3°F 0.03 in 102.5°F 80.5°F 0.96 in
September 79.6°F 53.0°F 0.07 in 97.5°F 74.7°F 0.71 in
October 74.0°F 48.4°F 0.64 in 86.3°F 62.7°F 0.67 in
November 63.7°F 42.5°F 1.60 in 74.0°F 50.8°F 0.90 in
December 57.6°F 38.6°F 2.95 in 63.9°F 42.7°F 0.81 in
East Palo Alto overview
Full climate profile
 Phoenix overview
Full climate profile