Johnston, SC vs Phoenix, AZ
Side-by-side comparison of monthly climate normals (NOAA 1991-2020).
Johnston is cooler than Phoenix (62.7°F vs 72.5°F annual avg) and wetter than it (48.5 in vs 8.9 in per year). Johnston has a Humid subtropical climate; Phoenix a Desert (hot) climate.
Johnston, SC
Annual avg
62.7°F
Annual precip
48.5 in
Warmest month
July (93.0°F)
Coldest month
January (32.7°F)
Annual swing
36.9°F
Pleasant months
1 / 12
Humid subtropical Cfa
USDA Zone 8b
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
Johnston
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 | Johnston | Phoenix | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 55.4°F | 32.7°F | 4.23 in | 65.4°F | 44.1°F | 1.17 in |
| February | 59.2°F | 35.2°F | 3.94 in | 68.1°F | 46.1°F | 1.21 in |
| March | 66.9°F | 40.9°F | 4.51 in | 75.0°F | 50.9°F | 1.09 in |
| April | 75.6°F | 48.6°F | 3.18 in | 82.5°F | 56.6°F | 0.35 in |
| May | 83.4°F | 57.3°F | 3.21 in | 91.5°F | 64.7°F | 0.19 in |
| June | 89.7°F | 65.2°F | 5.12 in | 101.5°F | 72.7°F | 0.03 in |
| July | 93.0°F | 68.7°F | 4.64 in | 104.0°F | 80.8°F | 0.81 in |
| August | 90.8°F | 67.9°F | 4.96 in | 102.5°F | 80.5°F | 0.96 in |
| September | 85.5°F | 62.3°F | 3.97 in | 97.5°F | 74.7°F | 0.71 in |
| October | 75.9°F | 51.0°F | 2.98 in | 86.3°F | 62.7°F | 0.67 in |
| November | 65.8°F | 40.4°F | 3.31 in | 74.0°F | 50.8°F | 0.90 in |
| December | 57.9°F | 34.9°F | 4.42 in | 63.9°F | 42.7°F | 0.81 in |
Full climate profile
Phoenix overviewFull climate profile