| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.20 | 1.30 | -0.10 |
| Feb | 1.53 | 1.68 | -0.15 |
| Mar | 2.42 | 2.52 | -0.10 |
| Apr | 4.09 | 4.07 | 0.02 |
| May | 5.57 | 5.65 | -0.08 |
| Jun | 5.11 | 5.40 | -0.29 |
| Jul | 4.47 | 4.44 | 0.03 |
| Aug | 4.52 | 4.31 | 0.21 |
| Sep | 3.93 | 4.17 | -0.24 |
| Oct | 3.24 | 3.32 | -0.08 |
| Nov | 2.26 | 2.32 | -0.06 |
| Dec | 1.63 | 1.76 | -0.13 |
39.97 | 40.94 | -0.97 |