| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.51  | 3.69  | -0.18  | 
| Feb | 3.13  | 3.34  | -0.21  | 
| Mar | 4.18  | 4.41  | -0.23  | 
| Apr | 4.30  | 4.57  | -0.27  | 
| May | 3.87  | 4.01  | -0.14  | 
| Jun | 4.28  | 4.31  | -0.03  | 
| Jul | 3.78  | 3.91  | -0.13  | 
| Aug | 3.88  | 4.20  | -0.32  | 
| Sep | 4.41  | 4.45  | -0.04  | 
| Oct | 4.54  | 4.84  | -0.30  | 
| Nov | 3.77  | 3.83  | -0.06  | 
| Dec | 4.32  | 4.53  | -0.21  | 
47.97  | 50.09  | -2.12  |