| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.57 | 1.66 | -0.09 | 
| Feb | 1.70 | 1.83 | -0.13 | 
| Mar | 2.47 | 2.45 | 0.02 | 
| Apr | 3.75 | 3.72 | 0.03 | 
| May | 4.70 | 4.85 | -0.15 | 
| Jun | 4.72 | 4.52 | 0.20 | 
| Jul | 4.08 | 4.17 | -0.09 | 
| Aug | 3.91 | 4.07 | -0.16 | 
| Sep | 3.42 | 3.52 | -0.10 | 
| Oct | 2.79 | 3.00 | -0.21 | 
| Nov | 2.39 | 2.51 | -0.12 | 
| Dec | 1.99 | 2.08 | -0.09 | 
| 37.49 | 38.38 | -0.89 |