| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.11 | 1.16 | -0.05 |
| Feb | 1.40 | 1.42 | -0.02 |
| Mar | 2.21 | 2.28 | -0.07 |
| Apr | 3.66 | 3.77 | -0.11 |
| May | 4.65 | 4.67 | -0.02 |
| Jun | 5.33 | 5.21 | 0.12 |
| Jul | 4.17 | 4.22 | -0.05 |
| Aug | 4.31 | 4.10 | 0.21 |
| Sep | 3.68 | 3.37 | 0.31 |
| Oct | 2.91 | 2.93 | -0.02 |
| Nov | 2.15 | 2.20 | -0.05 |
| Dec | 1.59 | 1.62 | -0.03 |
37.17 | 36.95 | 0.22 |