Marathon, FL vs Phoenix, AZ

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

Marathon is warmer than Phoenix (78.8°F vs 72.5°F annual avg) and wetter than it (39.7 in vs 8.9 in per year). Marathon has a Tropical savanna climate; Phoenix a Desert (hot) climate.

Marathon, FL

Annual avg
78.8°F
Annual precip
39.7 in
Warmest month
August (91.6°F)
Coldest month
January (64.2°F)
Annual swing
15.6°F
Pleasant months
3 / 12
Tropical savanna Aw USDA Zone 11b

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

Marathon

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 Marathon Phoenix
High Low Precip High Low Precip
January 75.8°F 64.2°F 1.64 in 65.4°F 44.1°F 1.17 in
February 78.1°F 66.4°F 1.70 in 68.1°F 46.1°F 1.21 in
March 80.7°F 68.5°F 1.33 in 75.0°F 50.9°F 1.09 in
April 84.1°F 72.5°F 2.11 in 82.5°F 56.6°F 0.35 in
May 87.5°F 75.8°F 3.36 in 91.5°F 64.7°F 0.19 in
June 90.3°F 78.5°F 4.23 in 101.5°F 72.7°F 0.03 in
July 90.9°F 79.4°F 3.77 in 104.0°F 80.8°F 0.81 in
August 91.6°F 79.7°F 5.32 in 102.5°F 80.5°F 0.96 in
September 89.9°F 78.4°F 6.37 in 97.5°F 74.7°F 0.71 in
October 86.2°F 75.8°F 5.90 in 86.3°F 62.7°F 0.67 in
November 81.2°F 70.8°F 1.79 in 74.0°F 50.8°F 0.90 in
December 77.9°F 67.5°F 2.20 in 63.9°F 42.7°F 0.81 in
Marathon overview
Full climate profile
 Phoenix overview
Full climate profile