Signal Mountain, TN vs Phoenix, AZ

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

Signal Mountain is cooler than Phoenix (57.4°F vs 72.5°F annual avg) and wetter than it (58.6 in vs 8.9 in per year). Signal Mountain has a Humid subtropical climate; Phoenix a Desert (hot) climate.

Signal Mountain, TN

Annual avg
57.4°F
Annual precip
58.6 in
Warmest month
July (83.8°F)
Coldest month
January (28.7°F)
Annual swing
38.4°F
Pleasant months
3 / 12
Humid subtropical Cfa USDA Zone 8a

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

Signal Mountain

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 Signal Mountain Phoenix
High Low Precip High Low Precip
January 45.6°F 28.7°F 5.53 in 65.4°F 44.1°F 1.17 in
February 49.4°F 31.4°F 5.99 in 68.1°F 46.1°F 1.21 in
March 58.3°F 38.6°F 5.59 in 75.0°F 50.9°F 1.09 in
April 67.7°F 47.4°F 5.52 in 82.5°F 56.6°F 0.35 in
May 74.2°F 56.8°F 4.31 in 91.5°F 64.7°F 0.19 in
June 80.5°F 64.7°F 4.21 in 101.5°F 72.7°F 0.03 in
July 83.8°F 67.4°F 4.78 in 104.0°F 80.8°F 0.81 in
August 82.4°F 66.6°F 3.98 in 102.5°F 80.5°F 0.96 in
September 77.6°F 61.3°F 4.92 in 97.5°F 74.7°F 0.71 in
October 67.4°F 50.6°F 3.78 in 86.3°F 62.7°F 0.67 in
November 56.8°F 39.8°F 4.62 in 74.0°F 50.8°F 0.90 in
December 48.5°F 32.4°F 5.37 in 63.9°F 42.7°F 0.81 in
Signal Mountain overview
Full climate profile
 Phoenix overview
Full climate profile