| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.51  | 3.70  | -0.19  | 
| Feb | 3.26  | 3.23  | 0.03  | 
| Mar | 3.59  | 3.76  | -0.17  | 
| Apr | 2.88  | 3.00  | -0.12  | 
| May | 3.03  | 3.20  | -0.17  | 
| Jun | 4.16  | 4.26  | -0.10  | 
| Jul | 4.13  | 4.47  | -0.34  | 
| Aug | 4.60  | 4.73  | -0.13  | 
| Sep | 3.82  | 3.96  | -0.14  | 
| Oct | 3.23  | 3.34  | -0.11  | 
| Nov | 2.88  | 2.95  | -0.07  | 
| Dec | 3.62  | 3.81  | -0.19  | 
42.71  | 44.41  | -1.70  |