| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.32  | 3.80  | -0.48  | 
| Feb | 2.89  | 3.25  | -0.36  | 
| Mar | 3.91  | 4.31  | -0.40  | 
| Apr | 3.90  | 4.44  | -0.54  | 
| May | 3.44  | 3.64  | -0.20  | 
| Jun | 4.19  | 4.22  | -0.03  | 
| Jul | 3.87  | 4.02  | -0.15  | 
| Aug | 3.82  | 4.06  | -0.24  | 
| Sep | 4.00  | 4.35  | -0.35  | 
| Oct | 4.53  | 4.90  | -0.37  | 
| Nov | 3.65  | 3.94  | -0.29  | 
| Dec | 4.07  | 4.54  | -0.47  | 
45.59  | 49.47  | -3.88  |