Forest Grove, OR vs Phoenix, AZ

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

Forest Grove is cooler than Phoenix (52.1°F vs 72.5°F annual avg) and wetter than it (46.7 in vs 8.9 in per year). Forest Grove has a Warm-summer Mediterranean climate; Phoenix a Desert (hot) climate.

Forest Grove, OR

Annual avg
52.1°F
Annual precip
46.7 in
Warmest month
August (82.2°F)
Coldest month
January (32.6°F)
Annual swing
29.5°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

Forest Grove

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 Forest Grove Phoenix
High Low Precip High Low Precip
January 45.0°F 32.6°F 7.19 in 65.4°F 44.1°F 1.17 in
February 49.4°F 33.1°F 5.76 in 68.1°F 46.1°F 1.21 in
March 54.6°F 35.9°F 5.03 in 75.0°F 50.9°F 1.09 in
April 60.1°F 39.2°F 3.33 in 82.5°F 56.6°F 0.35 in
May 68.1°F 45.3°F 2.19 in 91.5°F 64.7°F 0.19 in
June 73.1°F 49.7°F 1.40 in 101.5°F 72.7°F 0.03 in
July 81.4°F 53.8°F 0.32 in 104.0°F 80.8°F 0.81 in
August 82.2°F 53.5°F 0.51 in 102.5°F 80.5°F 0.96 in
September 76.1°F 48.7°F 1.34 in 97.5°F 74.7°F 0.71 in
October 63.3°F 41.6°F 3.70 in 86.3°F 62.7°F 0.67 in
November 50.9°F 36.3°F 7.23 in 74.0°F 50.8°F 0.90 in
December 44.0°F 32.8°F 8.72 in 63.9°F 42.7°F 0.81 in
Forest Grove overview
Full climate profile
 Phoenix overview
Full climate profile