| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.86 | 1.91 | -0.05 |
| Feb | 1.68 | 1.83 | -0.15 |
| Mar | 2.23 | 2.31 | -0.08 |
| Apr | 3.71 | 3.78 | -0.07 |
| May | 4.63 | 4.51 | 0.12 |
| Jun | 4.40 | 4.40 | 0.00 |
| Jul | 3.94 | 3.94 | 0.00 |
| Aug | 3.95 | 3.72 | 0.23 |
| Sep | 3.20 | 3.31 | -0.11 |
| Oct | 3.26 | 3.31 | -0.05 |
| Nov | 2.46 | 2.48 | -0.02 |
| Dec | 2.02 | 2.07 | -0.05 |
37.34 | 37.57 | -0.23 |