| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 4.23 | -0.20 |
| Feb | 3.57 | 3.80 | -0.23 |
| Mar | 3.72 | 3.79 | -0.07 |
| Apr | 3.47 | 3.55 | -0.08 |
| May | 4.27 | 4.29 | -0.02 |
| Jun | 5.24 | 5.06 | 0.18 |
| Jul | 6.39 | 6.48 | -0.09 |
| Aug | 7.20 | 7.38 | -0.18 |
| Sep | 7.64 | 7.89 | -0.25 |
| Oct | 4.21 | 4.76 | -0.55 |
| Nov | 3.71 | 4.11 | -0.40 |
| Dec | 3.95 | 4.10 | -0.15 |
57.40 | 59.44 | -2.04 |