Vacaville, CA vs Phoenix, AZ

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

Vacaville is cooler than Phoenix (62.1°F vs 72.5°F annual avg) and wetter than it (24.8 in vs 8.9 in per year). Vacaville has a Hot-summer Mediterranean climate; Phoenix a Desert (hot) climate.

Vacaville, CA

Annual avg
62.1°F
Annual precip
24.8 in
Warmest month
July (95.0°F)
Coldest month
December (37.1°F)
Annual swing
29.5°F
Hot-summer Mediterranean Csa 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

Vacaville

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 Vacaville Phoenix
High Low Precip High Low Precip
January 57.6°F 37.7°F 5.26 in 65.4°F 44.1°F 1.17 in
February 62.6°F 40.3°F 5.06 in 68.1°F 46.1°F 1.21 in
March 67.7°F 43.0°F 3.69 in 75.0°F 50.9°F 1.09 in
April 72.8°F 45.8°F 1.29 in 82.5°F 56.6°F 0.35 in
May 81.0°F 51.1°F 0.81 in 91.5°F 64.7°F 0.19 in
June 89.5°F 56.4°F 0.17 in 101.5°F 72.7°F 0.03 in
July 95.0°F 59.0°F 0.01 in 104.0°F 80.8°F 0.81 in
August 93.8°F 57.9°F 0.02 in 102.5°F 80.5°F 0.96 in
September 90.6°F 55.6°F 0.06 in 97.5°F 74.7°F 0.71 in
October 79.9°F 49.1°F 1.08 in 86.3°F 62.7°F 0.67 in
November 66.5°F 41.5°F 2.31 in 74.0°F 50.8°F 0.90 in
December 57.8°F 37.1°F 5.08 in 63.9°F 42.7°F 0.81 in
Vacaville overview
Full climate profile
 Phoenix overview
Full climate profile