| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.34 | 0.13 |
| Feb | 3.01 | 2.99 | 0.02 |
| Mar | 4.35 | 4.17 | 0.18 |
| Apr | 5.10 | 5.03 | 0.07 |
| May | 4.72 | 4.89 | -0.17 |
| Jun | 4.41 | 4.37 | 0.04 |
| Jul | 3.99 | 3.84 | 0.15 |
| Aug | 3.19 | 3.12 | 0.07 |
| Sep | 3.32 | 3.17 | 0.15 |
| Oct | 3.39 | 3.37 | 0.02 |
| Nov | 4.11 | 4.00 | 0.11 |
| Dec | 3.57 | 3.55 | 0.02 |
46.63 | 45.84 | 0.79 |