| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.70  | 4.20  | -0.50  | 
| Feb | 3.07  | 3.61  | -0.54  | 
| Mar | 4.21  | 4.72  | -0.51  | 
| Apr | 4.24  | 4.87  | -0.63  | 
| May | 3.53  | 3.88  | -0.35  | 
| Jun | 4.29  | 4.48  | -0.19  | 
| Jul | 3.51  | 3.75  | -0.24  | 
| Aug | 3.95  | 4.43  | -0.48  | 
| Sep | 4.15  | 4.73  | -0.58  | 
| Oct | 4.57  | 4.85  | -0.28  | 
| Nov | 3.99  | 4.20  | -0.21  | 
| Dec | 4.39  | 5.06  | -0.67  | 
47.60  | 52.78  | -5.18  |