Mercedes, TX vs Phoenix, AZ

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

Mercedes is warmer than Phoenix (75°F vs 72.5°F annual avg) and wetter than it (25.7 in vs 8.9 in per year). Mercedes has a Semi-arid (hot) climate; Phoenix a Desert (hot) climate.

Mercedes, TX

Annual avg
75°F
Annual precip
25.7 in
Warmest month
August (97.3°F)
Coldest month
January (50.0°F)
Annual swing
26.2°F
Pleasant months
4 / 12
Semi-arid (hot) BSh USDA Zone 10b

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

Mercedes

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 Mercedes Phoenix
High Low Precip High Low Precip
January 71.3°F 50.0°F 1.02 in 65.4°F 44.1°F 1.17 in
February 75.4°F 53.5°F 0.95 in 68.1°F 46.1°F 1.21 in
March 80.7°F 60.1°F 1.45 in 75.0°F 50.9°F 1.09 in
April 86.3°F 65.1°F 1.46 in 82.5°F 56.6°F 0.35 in
May 90.3°F 71.5°F 2.61 in 91.5°F 64.7°F 0.19 in
June 94.6°F 75.5°F 2.79 in 101.5°F 72.7°F 0.03 in
July 95.7°F 76.5°F 2.24 in 104.0°F 80.8°F 0.81 in
August 97.3°F 76.4°F 1.87 in 102.5°F 80.5°F 0.96 in
September 92.0°F 72.8°F 5.64 in 97.5°F 74.7°F 0.71 in
October 87.2°F 66.0°F 2.84 in 86.3°F 62.7°F 0.67 in
November 79.9°F 58.4°F 1.61 in 74.0°F 50.8°F 0.90 in
December 72.0°F 51.6°F 1.25 in 63.9°F 42.7°F 0.81 in
Mercedes overview
Full climate profile
 Phoenix overview
Full climate profile