| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.38  | 3.77  | -0.39  | 
| Feb | 2.95  | 3.27  | -0.32  | 
| Mar | 4.29  | 4.72  | -0.43  | 
| Apr | 4.08  | 4.26  | -0.18  | 
| May | 3.53  | 3.51  | 0.02  | 
| Jun | 3.68  | 3.63  | 0.05  | 
| Jul | 3.11  | 3.09  | 0.02  | 
| Aug | 3.65  | 3.79  | -0.14  | 
| Sep | 4.02  | 4.04  | -0.02  | 
| Oct | 4.36  | 4.43  | -0.07  | 
| Nov | 3.59  | 3.72  | -0.13  | 
| Dec | 4.24  | 4.63  | -0.39  | 
44.88  | 46.86  | -1.98  |