Pontiac, Illinois
ID: USC00116910 Latitude: 40.8778 Longitude: -88.6364
Elevation: 649.9 feet ( 198.1 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 36.95 in., 14.55 cm.
Monthly Data Table for Pontiac, 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 |
33.1 |
35.4 |
49.9 |
63.1 |
74.0 |
82.4 |
84.1 |
83.1 |
78.4 |
65.0 |
50.7 |
38.4 |
Minimum Temperature |
°F |
17.4 |
18.5 |
30.7 |
40.7 |
53.0 |
62.5 |
65.9 |
64.0 |
56.9 |
44.4 |
32.4 |
22.9 |
Heating Degree Days |
°F |
1232.0 |
1064.8 |
769.8 |
400.4 |
140.5 |
13.0 |
2.6 |
4.9 |
63.1 |
339.4 |
704.0 |
1064.6 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
3.8 |
7.4 |
93.9 |
236.3 |
312.6 |
269.9 |
142.2 |
20.1 |
0.5 |
0.0 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
0.6 |
1.9 |
9.9 |
17.3 |
23.3 |
28.0 |
28.9 |
28.4 |
25.8 |
18.3 |
10.4 |
3.6 |
Minimum Temperature |
°C |
-8.1 |
-7.5 |
-0.7 |
4.8 |
11.7 |
16.9 |
18.8 |
17.8 |
13.8 |
6.9 |
0.2 |
-5.1 |
Heating Degree Days |
°C |
666.7 |
573.8 |
409.9 |
204.7 |
60.3 |
-10.6 |
-16.3 |
-15.1 |
17.3 |
170.8 |
373.3 |
573.7 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-15.7 |
-13.7 |
34.4 |
113.5 |
155.9 |
132.2 |
61.2 |
-6.6 |
-17.5 |
-17.8 |