| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.66 | 4.33 | 0.33 |
| Feb | 3.84 | 3.49 | 0.35 |
| Mar | 4.76 | 4.51 | 0.25 |
| Apr | 4.81 | 4.79 | 0.02 |
| May | 5.05 | 4.72 | 0.33 |
| Jun | 4.92 | 4.78 | 0.14 |
| Jul | 5.20 | 4.53 | 0.67 |
| Aug | 5.62 | 5.51 | 0.11 |
| Sep | 5.17 | 4.99 | 0.18 |
| Oct | 4.50 | 4.52 | -0.02 |
| Nov | 4.20 | 3.55 | 0.65 |
| Dec | 4.73 | 4.63 | 0.10 |
57.46 | 54.35 | 3.11 |