| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 2.73 | 0.29 |
| Feb | 2.48 | 2.34 | 0.14 |
| Mar | 3.50 | 3.33 | 0.17 |
| Apr | 3.79 | 3.51 | 0.28 |
| May | 4.15 | 3.68 | 0.47 |
| Jun | 4.17 | 3.96 | 0.21 |
| Jul | 4.16 | 3.82 | 0.34 |
| Aug | 3.91 | 3.82 | 0.09 |
| Sep | 4.39 | 3.97 | 0.42 |
| Oct | 3.77 | 3.43 | 0.34 |
| Nov | 3.27 | 2.89 | 0.38 |
| Dec | 3.41 | 3.10 | 0.31 |
44.02 | 40.58 | 3.44 |