St. Elmo, IL vs Phoenix, AZ

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

St. Elmo is cooler than Phoenix (54.6°F vs 72.5°F annual avg) and wetter than it (41.2 in vs 8.9 in per year). St. Elmo has a Hot-summer humid continental climate; Phoenix a Desert (hot) climate.

St. Elmo, IL

Annual avg
54.6°F
Annual precip
41.2 in
Warmest month
July (86.7°F)
Coldest month
January (21.3°F)
Annual swing
47.6°F
Pleasant months
2 / 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

St. Elmo

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 St. Elmo Phoenix
High Low Precip High Low Precip
January 37.0°F 21.3°F 2.82 in 65.4°F 44.1°F 1.17 in
February 42.1°F 25.3°F 2.41 in 68.1°F 46.1°F 1.21 in
March 52.4°F 34.7°F 3.17 in 75.0°F 50.9°F 1.09 in
April 64.9°F 45.4°F 4.39 in 82.5°F 56.6°F 0.35 in
May 74.7°F 55.1°F 5.34 in 91.5°F 64.7°F 0.19 in
June 83.6°F 65.1°F 4.13 in 101.5°F 72.7°F 0.03 in
July 86.7°F 67.0°F 3.74 in 104.0°F 80.8°F 0.81 in
August 85.5°F 64.1°F 3.15 in 102.5°F 80.5°F 0.96 in
September 80.0°F 56.4°F 3.38 in 97.5°F 74.7°F 0.71 in
October 66.6°F 44.9°F 2.89 in 86.3°F 62.7°F 0.67 in
November 52.8°F 35.5°F 3.63 in 74.0°F 50.8°F 0.90 in
December 41.6°F 26.7°F 2.15 in 63.9°F 42.7°F 0.81 in
St. Elmo overview
Full climate profile
 Phoenix overview
Full climate profile