San Bruno, CA vs Phoenix, AZ

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

San Bruno is cooler than Phoenix (57.4°F vs 72.5°F annual avg) and wetter than it (31.9 in vs 8.9 in per year). San Bruno has a Warm-summer Mediterranean climate; Phoenix a Desert (hot) climate.

San Bruno, CA

Annual avg
57.4°F
Annual precip
31.9 in
Warmest month
September (72.3°F)
Coldest month
January (45.3°F)
Annual swing
11.2°F
Pleasant months
5 / 12
Warm-summer Mediterranean Csb USDA Zone 10a

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

San Bruno

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 San Bruno Phoenix
High Low Precip High Low Precip
January 58.1°F 45.3°F 6.14 in 65.4°F 44.1°F 1.17 in
February 60.1°F 46.0°F 6.48 in 68.1°F 46.1°F 1.21 in
March 61.4°F 46.1°F 4.45 in 75.0°F 50.9°F 1.09 in
April 63.9°F 47.6°F 2.36 in 82.5°F 56.6°F 0.35 in
May 66.9°F 49.4°F 1.00 in 91.5°F 64.7°F 0.19 in
June 68.8°F 50.8°F 0.25 in 101.5°F 72.7°F 0.03 in
July 69.4°F 52.3°F 0.01 in 104.0°F 80.8°F 0.81 in
August 71.0°F 53.3°F 0.08 in 102.5°F 80.5°F 0.96 in
September 72.3°F 53.4°F 0.11 in 97.5°F 74.7°F 0.71 in
October 70.1°F 52.3°F 1.50 in 86.3°F 62.7°F 0.67 in
November 64.1°F 49.7°F 2.86 in 74.0°F 50.8°F 0.90 in
December 58.8°F 46.2°F 6.64 in 63.9°F 42.7°F 0.81 in
San Bruno overview
Full climate profile
 Phoenix overview
Full climate profile