| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 4.06 | -0.04 |
| Feb | 3.11 | 3.18 | -0.07 |
| Mar | 3.61 | 3.59 | 0.02 |
| Apr | 3.86 | 3.81 | 0.05 |
| May | 5.12 | 5.06 | 0.06 |
| Jun | 5.17 | 5.15 | 0.02 |
| Jul | 3.97 | 3.85 | 0.12 |
| Aug | 4.62 | 4.72 | -0.10 |
| Sep | 4.41 | 4.76 | -0.35 |
| Oct | 5.17 | 5.10 | 0.07 |
| Nov | 4.21 | 4.50 | -0.29 |
| Dec | 4.08 | 4.10 | -0.02 |
51.35 | 51.88 | -0.53 |