Historical Weather Records & Monthly Climate for DeKalb, IL
All-Time High
98°F
All-Time Low
-32°F
Max Daily Snow
6.8"
Max Daily Rain
2.6"
Max Snow Depth
3"
Monthly Climate Averages for DeKalb, IL
Based on 30 years of historical data (1994 - 2023)
| Month | High (°F) | Low (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|
| January | 55° | 38° | 4.52" | 0.48" |
| February | 59° | 41° | 4.71" | 0.24" |
| March | 67° | 48° | 5.07" | 0.05" |
| April | 74° | 55° | 4.41" | 0 |
| May | 83° | 63° | 3.67" | 0 |
| June | 89° | 70° | 3.63" | 0 |
| July | 90° | 73° | 4.52" | 0 |
| August | 90° | 73° | 4.26" | 0 |
| September | 85° | 68° | 3.02" | 0 |
| October | 76° | 58° | 3.31" | 0 |
| November | 65° | 47° | 3.46" | 0.01" |
| December | 57° | 41° | 4.62" | 0.23" |
More Historical Climate Data for Cities in
IL