| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.06 | 0.21 |
| Feb | 3.16 | 2.92 | 0.24 |
| Mar | 3.85 | 3.57 | 0.28 |
| Apr | 3.92 | 3.73 | 0.19 |
| May | 3.84 | 3.54 | 0.30 |
| Jun | 4.26 | 4.20 | 0.06 |
| Jul | 4.13 | 3.59 | 0.54 |
| Aug | 3.96 | 3.68 | 0.28 |
| Sep | 3.98 | 3.65 | 0.33 |
| Oct | 4.83 | 4.67 | 0.16 |
| Nov | 3.92 | 3.52 | 0.40 |
| Dec | 4.27 | 3.94 | 0.33 |
47.39 | 44.07 | 3.32 |