| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.80 | 1.94 | -0.14 |
| Feb | 1.75 | 1.90 | -0.15 |
| Mar | 2.25 | 2.29 | -0.04 |
| Apr | 3.80 | 3.82 | -0.02 |
| May | 4.13 | 4.29 | -0.16 |
| Jun | 4.32 | 4.39 | -0.07 |
| Jul | 3.47 | 3.66 | -0.19 |
| Aug | 3.68 | 3.60 | 0.08 |
| Sep | 3.43 | 3.53 | -0.10 |
| Oct | 3.21 | 3.17 | 0.04 |
| Nov | 2.41 | 2.39 | 0.02 |
| Dec | 1.93 | 2.13 | -0.20 |
36.18 | 37.11 | -0.93 |