| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.22 | 1.25 | -0.03 |
| Feb | 1.58 | 1.64 | -0.06 |
| Mar | 2.40 | 2.55 | -0.15 |
| Apr | 3.99 | 4.07 | -0.08 |
| May | 5.18 | 5.49 | -0.31 |
| Jun | 4.95 | 5.31 | -0.36 |
| Jul | 4.70 | 4.81 | -0.11 |
| Aug | 4.24 | 4.35 | -0.11 |
| Sep | 4.13 | 4.34 | -0.21 |
| Oct | 3.23 | 3.39 | -0.16 |
| Nov | 2.24 | 2.20 | 0.04 |
| Dec | 1.77 | 1.71 | 0.06 |
39.63 | 41.11 | -1.48 |