Flagstaff, AZ vs Phoenix, AZ

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

Flagstaff is cooler than Phoenix (46.8°F vs 72.5°F annual avg) and wetter than it (20.5 in vs 8.9 in per year). Flagstaff has a Mediterranean continental (warm summer) climate; Phoenix a Desert (hot) climate.

Flagstaff, AZ

Annual avg
46.8°F
Annual precip
20.5 in
Warmest month
July (82.0°F)
Coldest month
December (16.9°F)
Annual swing
36.7°F
Pleasant months
1 / 12
Mediterranean continental (warm summer) Dsb USDA Zone 7a

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

Flagstaff

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 Flagstaff Phoenix
High Low Precip High Low Precip
January 43.4°F 17.6°F 2.05 in 65.4°F 44.1°F 1.17 in
February 45.7°F 19.6°F 2.17 in 68.1°F 46.1°F 1.21 in
March 52.2°F 23.8°F 1.88 in 75.0°F 50.9°F 1.09 in
April 59.2°F 28.2°F 0.89 in 82.5°F 56.6°F 0.35 in
May 68.1°F 34.6°F 0.77 in 91.5°F 64.7°F 0.19 in
June 79.1°F 42.5°F 0.30 in 101.5°F 72.7°F 0.03 in
July 82.0°F 51.4°F 2.61 in 104.0°F 80.8°F 0.81 in
August 79.3°F 50.6°F 3.04 in 102.5°F 80.5°F 0.96 in
September 74.1°F 42.5°F 1.84 in 97.5°F 74.7°F 0.71 in
October 63.6°F 31.5°F 1.52 in 86.3°F 62.7°F 0.67 in
November 52.1°F 23.0°F 1.55 in 74.0°F 50.8°F 0.90 in
December 43.0°F 16.9°F 1.90 in 63.9°F 42.7°F 0.81 in
Flagstaff overview
Full climate profile
 Phoenix overview
Full climate profile