| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.02 | 1.21 | -0.19 |
| Feb | 1.23 | 1.41 | -0.18 |
| Mar | 1.98 | 2.15 | -0.17 |
| Apr | 3.82 | 3.86 | -0.04 |
| May | 4.45 | 4.63 | -0.18 |
| Jun | 5.61 | 5.71 | -0.10 |
| Jul | 4.33 | 4.38 | -0.05 |
| Aug | 4.23 | 4.19 | 0.04 |
| Sep | 3.61 | 3.89 | -0.28 |
| Oct | 2.91 | 2.98 | -0.07 |
| Nov | 2.14 | 2.19 | -0.05 |
| Dec | 1.55 | 1.67 | -0.12 |
36.88 | 38.27 | -1.39 |