| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.19 | 0.11 |
| Feb | 3.12 | 3.01 | 0.11 |
| Mar | 4.42 | 4.13 | 0.29 |
| Apr | 5.52 | 5.17 | 0.35 |
| May | 5.14 | 4.92 | 0.22 |
| Jun | 4.58 | 4.48 | 0.10 |
| Jul | 3.91 | 3.77 | 0.14 |
| Aug | 3.32 | 3.07 | 0.25 |
| Sep | 3.41 | 3.13 | 0.28 |
| Oct | 3.63 | 3.42 | 0.21 |
| Nov | 4.10 | 4.04 | 0.06 |
| Dec | 3.49 | 3.45 | 0.04 |
47.94 | 45.78 | 2.16 |