CLIMATE CHARTS
Johnston, South Carolina
Latitude: 33.7775 Longitude: -81.8467
Elevation: 620.1 feet (189.0 meters)
Monthly Data Table for Johnston, South Carolina
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
52.9 |
57.3 |
64.8 |
73.2 |
81.6 |
88.2 |
91.2 |
89.2 |
83.3 |
73.6 |
64.7 |
55.1 |
Minimum Temperature |
°F |
31.5 |
34.5 |
40.6 |
47.2 |
56.3 |
64.7 |
68.1 |
67.2 |
61.1 |
49.8 |
40.9 |
33.1 |
Heating Degree Days |
°F |
707 |
536 |
388 |
183 |
39 |
2 |
0 |
0 |
17 |
155 |
375 |
649 |
Cooling Degree Days |
°F |
0 |
1 |
7 |
39 |
162 |
346 |
454 |
410 |
233 |
53 |
9 |
1 |
Precipitation |
in. |
4.35 |
4.18 |
4.53 |
3.09 |
2.99 |
4.64 |
4.19 |
4.89 |
3.67 |
3.43 |
3.37 |
3.58 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
11.6 |
14.1 |
18.2 |
22.9 |
27.6 |
31.2 |
32.9 |
31.8 |
28.5 |
23.1 |
18.2 |
12.8 |
Minimum Temperature |
°C |
-0.3 |
1.4 |
4.8 |
8.4 |
13.5 |
18.2 |
20.1 |
19.6 |
16.2 |
9.9 |
4.9 |
0.6 |
Heating Degree Days |
°C |
393 |
298 |
216 |
102 |
22 |
1 |
0 |
0 |
9 |
86 |
208 |
361 |
Cooling Degree Days |
°C |
0 |
1 |
4 |
22 |
90 |
192 |
252 |
228 |
129 |
29 |
5 |
1 |
Precipitation |
cm. |
11.05 |
10.62 |
11.51 |
7.85 |
7.59 |
11.79 |
10.64 |
12.42 |
9.32 |
8.71 |
8.56 |
9.09 |