Salem, Illinois
ID: USC00117636 Latitude: 38.6403 Longitude: -88.9458
Elevation: 549.9 feet ( 167.6 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 45.89 in., 18.07 cm.
Monthly Data Table for Salem, Illinois
Monthly Data from NOAA Monthly Normals 2006-2020
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
38.8 |
41.8 |
54.5 |
66.2 |
75.8 |
85.3 |
87.5 |
86.4 |
80.6 |
68.1 |
54.3 |
43.2 |
Minimum Temperature |
°F |
21.0 |
22.6 |
33.9 |
43.4 |
55.3 |
64.7 |
67.5 |
65.5 |
58.1 |
45.5 |
33.8 |
26.3 |
Heating Degree Days |
°F |
1087.8 |
917.9 |
650.2 |
321.9 |
101.4 |
3.8 |
0.2 |
1.1 |
43.0 |
287.2 |
629.8 |
937.6 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
5.2 |
16.0 |
118.3 |
303.6 |
387.6 |
340.5 |
173.2 |
33.0 |
1.4 |
0.0 |
Precipitation |
I |
2.6 |
2.7 |
4.2 |
5.2 |
4.9 |
5.7 |
4.2 |
3.8 |
3.8 |
3.7 |
3.8 |
3.5 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
3.8 |
5.4 |
12.5 |
19.0 |
24.3 |
29.6 |
30.8 |
30.2 |
27.0 |
20.1 |
12.4 |
6.2 |
Minimum Temperature |
°C |
-6.1 |
-5.2 |
1.1 |
6.3 |
12.9 |
18.2 |
19.7 |
18.6 |
14.5 |
7.5 |
1.0 |
-3.2 |
Heating Degree Days |
°C |
586.6 |
492.2 |
343.4 |
161.1 |
38.6 |
-15.7 |
-17.7 |
-17.2 |
6.1 |
141.8 |
332.1 |
503.1 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-14.9 |
-8.9 |
47.9 |
150.9 |
197.6 |
171.4 |
78.4 |
0.6 |
-17.0 |
-17.8 |
Precipitation |
M |
6.7 |
6.9 |
10.6 |
13.2 |
12.4 |
14.6 |
10.6 |
9.6 |
9.6 |
9.5 |
9.7 |
9.0 |