Half Moon Bay, CA vs Phoenix, AZ

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

Half Moon Bay is cooler than Phoenix (54.9°F vs 72.5°F annual avg) and wetter than it (26 in vs 8.9 in per year). Half Moon Bay has a Warm-summer Mediterranean climate; Phoenix a Desert (hot) climate.

Half Moon Bay, CA

Annual avg
54.9°F
Annual precip
26 in
Warmest month
September (66.4°F)
Coldest month
December (42.9°F)
Annual swing
8.8°F
Pleasant months
2 / 12
Warm-summer Mediterranean Csb 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

Half Moon Bay

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 Half Moon Bay Phoenix
High Low Precip High Low Precip
January 59.4°F 43.4°F 5.07 in 65.4°F 44.1°F 1.17 in
February 59.5°F 43.0°F 4.73 in 68.1°F 46.1°F 1.21 in
March 60.4°F 43.7°F 3.67 in 75.0°F 50.9°F 1.09 in
April 61.0°F 44.7°F 1.81 in 82.5°F 56.6°F 0.35 in
May 61.7°F 48.0°F 0.96 in 91.5°F 64.7°F 0.19 in
June 63.9°F 49.9°F 0.36 in 101.5°F 72.7°F 0.03 in
July 64.8°F 52.7°F 0.14 in 104.0°F 80.8°F 0.81 in
August 65.6°F 53.9°F 0.23 in 102.5°F 80.5°F 0.96 in
September 66.4°F 51.3°F 0.21 in 97.5°F 74.7°F 0.71 in
October 66.4°F 47.9°F 1.26 in 86.3°F 62.7°F 0.67 in
November 62.6°F 44.8°F 2.43 in 74.0°F 50.8°F 0.90 in
December 59.0°F 42.9°F 5.17 in 63.9°F 42.7°F 0.81 in
Half Moon Bay overview
Full climate profile
 Phoenix overview
Full climate profile