| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.13 | 6.21 | -0.08 |
| Feb | 5.59 | 5.65 | -0.06 |
| Mar | 5.89 | 5.99 | -0.10 |
| Apr | 5.57 | 5.65 | -0.08 |
| May | 4.88 | 5.09 | -0.21 |
| Jun | 5.40 | 5.71 | -0.31 |
| Jul | 5.45 | 5.43 | 0.02 |
| Aug | 5.61 | 5.55 | 0.06 |
| Sep | 4.56 | 5.47 | -0.91 |
| Oct | 4.68 | 4.63 | 0.05 |
| Nov | 5.59 | 5.46 | 0.13 |
| Dec | 6.39 | 6.43 | -0.04 |
65.74 | 67.27 | -1.53 |