Derby, CT vs Phoenix, AZ

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

Derby is cooler than Phoenix (50.2°F vs 72.5°F annual avg) and wetter than it (52 in vs 8.9 in per year). Derby has a Hot-summer humid continental climate; Phoenix a Desert (hot) climate.

Derby, CT

Annual avg
50.2°F
Annual precip
52 in
Warmest month
July (82.0°F)
Coldest month
January (18.4°F)
Annual swing
45.4°F
Pleasant months
2 / 12
Hot-summer humid continental Dfa USDA Zone 7a

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

Derby

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 Derby Phoenix
High Low Precip High Low Precip
January 36.0°F 18.4°F 3.95 in 65.4°F 44.1°F 1.17 in
February 38.1°F 18.9°F 3.62 in 68.1°F 46.1°F 1.21 in
March 46.8°F 27.4°F 4.72 in 75.0°F 50.9°F 1.09 in
April 58.2°F 37.5°F 4.72 in 82.5°F 56.6°F 0.35 in
May 69.0°F 47.2°F 4.04 in 91.5°F 64.7°F 0.19 in
June 77.3°F 57.9°F 3.93 in 101.5°F 72.7°F 0.03 in
July 82.0°F 63.1°F 4.30 in 104.0°F 80.8°F 0.81 in
August 82.0°F 62.1°F 4.56 in 102.5°F 80.5°F 0.96 in
September 75.0°F 53.6°F 4.38 in 97.5°F 74.7°F 0.71 in
October 63.3°F 41.2°F 5.00 in 86.3°F 62.7°F 0.67 in
November 51.6°F 32.0°F 4.24 in 74.0°F 50.8°F 0.90 in
December 41.2°F 23.3°F 4.57 in 63.9°F 42.7°F 0.81 in
Derby overview
Full climate profile
 Phoenix overview
Full climate profile