| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.45 | 0.05 |
| Feb | 2.84 | 2.82 | 0.02 |
| Mar | 3.46 | 3.31 | 0.15 |
| Apr | 4.11 | 3.99 | 0.12 |
| May | 4.24 | 4.18 | 0.06 |
| Jun | 4.63 | 4.56 | 0.07 |
| Jul | 4.56 | 4.30 | 0.26 |
| Aug | 4.38 | 4.10 | 0.28 |
| Sep | 4.51 | 4.47 | 0.04 |
| Oct | 4.71 | 4.54 | 0.17 |
| Nov | 3.41 | 3.31 | 0.10 |
| Dec | 3.72 | 3.59 | 0.13 |
48.07 | 46.62 | 1.45 |