| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.49  | 3.77  | -0.28  | 
| Feb | 3.00  | 3.45  | -0.45  | 
| Mar | 4.05  | 4.62  | -0.57  | 
| Apr | 4.18  | 4.43  | -0.25  | 
| May | 3.56  | 3.73  | -0.17  | 
| Jun | 3.93  | 4.06  | -0.13  | 
| Jul | 3.35  | 3.55  | -0.20  | 
| Aug | 3.79  | 4.20  | -0.41  | 
| Sep | 4.18  | 4.45  | -0.27  | 
| Oct | 4.42  | 4.66  | -0.24  | 
| Nov | 3.79  | 3.84  | -0.05  | 
| Dec | 4.26  | 4.71  | -0.45  | 
46.00  | 49.47  | -3.47  |