Marengo, Illinois
ID: USC00115326 Latitude: 42.2636 Longitude: -88.6078
Elevation: 815 feet ( 248.4 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 37.61 in., 14.81 cm.
Monthly Data Table for Marengo, 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 |
29.2 |
31.4 |
45.4 |
58.5 |
70.6 |
79.6 |
83.6 |
81.5 |
75.5 |
61.7 |
47.7 |
34.7 |
Minimum Temperature |
°F |
12.3 |
13.0 |
25.7 |
36.2 |
47.7 |
57.8 |
61.9 |
59.5 |
52.1 |
39.6 |
28.8 |
18.8 |
Heating Degree Days |
°F |
1371.5 |
1197.6 |
915.3 |
531.3 |
228.3 |
34.4 |
6.3 |
16.3 |
121.1 |
451.9 |
802.6 |
1185.4 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
2.1 |
1.9 |
46.7 |
145.2 |
246.3 |
186.7 |
84.7 |
7.2 |
0.1 |
0.0 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
-1.6 |
-0.3 |
7.4 |
14.7 |
21.4 |
26.4 |
28.7 |
27.5 |
24.2 |
16.5 |
8.7 |
1.5 |
Minimum Temperature |
°C |
-10.9 |
-10.6 |
-3.5 |
2.3 |
8.7 |
14.3 |
16.6 |
15.3 |
11.2 |
4.2 |
-1.8 |
-7.3 |
Heating Degree Days |
°C |
744.2 |
647.6 |
490.7 |
277.4 |
109.1 |
1.3 |
-14.3 |
-8.7 |
49.5 |
233.3 |
428.1 |
640.8 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-16.6 |
-16.7 |
8.2 |
62.9 |
119.1 |
85.9 |
29.3 |
-13.8 |
-17.7 |
-17.8 |