| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.77 | 2.63 | 0.14 |
| Feb | 2.31 | 2.18 | 0.13 |
| Mar | 2.81 | 2.72 | 0.09 |
| Apr | 3.53 | 3.27 | 0.26 |
| May | 3.93 | 3.82 | 0.11 |
| Jun | 4.39 | 4.30 | 0.09 |
| Jul | 4.55 | 4.37 | 0.18 |
| Aug | 4.28 | 4.21 | 0.07 |
| Sep | 4.24 | 3.96 | 0.28 |
| Oct | 4.39 | 4.17 | 0.22 |
| Nov | 3.39 | 3.17 | 0.22 |
| Dec | 3.36 | 3.16 | 0.20 |
43.95 | 41.96 | 1.99 |