Dayton, OR vs Phoenix, AZ

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

Dayton is cooler than Phoenix (52.9°F vs 72.5°F annual avg) and wetter than it (37.6 in vs 8.9 in per year). Dayton has a Warm-summer Mediterranean climate; Phoenix a Desert (hot) climate.

Dayton, OR

Annual avg
52.9°F
Annual precip
37.6 in
Warmest month
August (83.1°F)
Coldest month
December (34.4°F)
Annual swing
27°F
Warm-summer Mediterranean Csb USDA Zone 8b

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

Dayton

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 Dayton Phoenix
High Low Precip High Low Precip
January 47.3°F 35.2°F 5.51 in 65.4°F 44.1°F 1.17 in
February 51.0°F 35.3°F 4.08 in 68.1°F 46.1°F 1.21 in
March 55.7°F 37.1°F 4.17 in 75.0°F 50.9°F 1.09 in
April 60.5°F 39.7°F 2.99 in 82.5°F 56.6°F 0.35 in
May 68.0°F 44.3°F 1.99 in 91.5°F 64.7°F 0.19 in
June 73.7°F 48.3°F 1.32 in 101.5°F 72.7°F 0.03 in
July 82.7°F 51.9°F 0.25 in 104.0°F 80.8°F 0.81 in
August 83.1°F 51.9°F 0.36 in 102.5°F 80.5°F 0.96 in
September 77.0°F 48.2°F 1.30 in 97.5°F 74.7°F 0.71 in
October 64.0°F 42.3°F 3.48 in 86.3°F 62.7°F 0.67 in
November 52.6°F 37.9°F 5.74 in 74.0°F 50.8°F 0.90 in
December 46.5°F 34.4°F 6.45 in 63.9°F 42.7°F 0.81 in
Dayton overview
Full climate profile
 Phoenix overview
Full climate profile