| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.98 | 6.57 | 0.41 |
| Feb | 5.25 | 4.82 | 0.43 |
| Mar | 5.68 | 5.13 | 0.55 |
| Apr | 4.46 | 4.07 | 0.39 |
| May | 3.32 | 3.04 | 0.28 |
| Jun | 2.42 | 2.14 | 0.28 |
| Jul | 0.63 | 0.57 | 0.06 |
| Aug | 0.80 | 0.68 | 0.12 |
| Sep | 2.05 | 1.86 | 0.19 |
| Oct | 4.74 | 4.33 | 0.41 |
| Nov | 7.54 | 6.87 | 0.67 |
| Dec | 7.84 | 7.45 | 0.39 |
51.71 | 47.53 | 4.18 |