Wheaton, MO vs Phoenix, AZ

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

Wheaton is cooler than Phoenix (56.8°F vs 72.5°F annual avg) and wetter than it (46.4 in vs 8.9 in per year). Wheaton has a Humid subtropical climate; Phoenix a Desert (hot) climate.

Wheaton, MO

Annual avg
56.8°F
Annual precip
46.4 in
Warmest month
August (88.4°F)
Coldest month
January (23.9°F)
Annual swing
44°F
Pleasant months
1 / 12
Humid subtropical Cfa 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

Wheaton

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 Wheaton Phoenix
High Low Precip High Low Precip
January 44.1°F 23.9°F 2.47 in 65.4°F 44.1°F 1.17 in
February 48.7°F 27.5°F 2.21 in 68.1°F 46.1°F 1.21 in
March 57.6°F 35.9°F 3.78 in 75.0°F 50.9°F 1.09 in
April 67.4°F 45.3°F 4.65 in 82.5°F 56.6°F 0.35 in
May 75.2°F 54.8°F 6.04 in 91.5°F 64.7°F 0.19 in
June 83.3°F 63.7°F 4.93 in 101.5°F 72.7°F 0.03 in
July 88.3°F 67.7°F 4.01 in 104.0°F 80.8°F 0.81 in
August 88.4°F 66.2°F 3.14 in 102.5°F 80.5°F 0.96 in
September 81.0°F 58.4°F 4.91 in 97.5°F 74.7°F 0.71 in
October 69.8°F 47.1°F 3.67 in 86.3°F 62.7°F 0.67 in
November 57.1°F 36.2°F 3.77 in 74.0°F 50.8°F 0.90 in
December 47.2°F 27.8°F 2.85 in 63.9°F 42.7°F 0.81 in
Wheaton overview
Full climate profile
 Phoenix overview
Full climate profile