| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.63 | 0.05 |
| Feb | 4.12 | 4.09 | 0.03 |
| Mar | 5.06 | 4.93 | 0.13 |
| Apr | 5.63 | 5.43 | 0.20 |
| May | 5.43 | 5.40 | 0.03 |
| Jun | 3.59 | 3.42 | 0.17 |
| Jul | 3.74 | 3.82 | -0.08 |
| Aug | 3.55 | 3.32 | 0.23 |
| Sep | 3.21 | 3.18 | 0.03 |
| Oct | 4.40 | 4.20 | 0.20 |
| Nov | 4.67 | 4.89 | -0.22 |
| Dec | 5.10 | 5.18 | -0.08 |
52.18 | 51.49 | 0.69 |