Riverside, MO vs Phoenix, AZ

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

Riverside is cooler than Phoenix (56.9°F vs 72.5°F annual avg) and wetter than it (38.1 in vs 8.9 in per year). Riverside has a Hot-summer humid continental climate; Phoenix a Desert (hot) climate.

Riverside, MO

Annual avg
56.9°F
Annual precip
38.1 in
Warmest month
July (90.2°F)
Coldest month
January (22.2°F)
Annual swing
50°F
Pleasant months
1 / 12
Hot-summer humid continental Dfa USDA Zone 7b

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

Riverside

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 Riverside Phoenix
High Low Precip High Low Precip
January 39.9°F 22.2°F 1.02 in 65.4°F 44.1°F 1.17 in
February 45.1°F 26.4°F 1.53 in 68.1°F 46.1°F 1.21 in
March 56.6°F 36.2°F 2.08 in 75.0°F 50.9°F 1.09 in
April 66.8°F 46.3°F 3.89 in 82.5°F 56.6°F 0.35 in
May 76.2°F 57.2°F 5.10 in 91.5°F 64.7°F 0.19 in
June 85.8°F 67.2°F 5.33 in 101.5°F 72.7°F 0.03 in
July 90.2°F 71.9°F 4.38 in 104.0°F 80.8°F 0.81 in
August 88.6°F 69.9°F 4.68 in 102.5°F 80.5°F 0.96 in
September 80.4°F 61.0°F 3.78 in 97.5°F 74.7°F 0.71 in
October 68.2°F 48.7°F 3.24 in 86.3°F 62.7°F 0.67 in
November 54.5°F 36.3°F 1.80 in 74.0°F 50.8°F 0.90 in
December 43.9°F 26.7°F 1.30 in 63.9°F 42.7°F 0.81 in
Riverside overview
Full climate profile
 Phoenix overview
Full climate profile