| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.67 | 4.59 | 0.08 |
| Feb | 4.75 | 4.63 | 0.12 |
| Mar | 4.95 | 4.92 | 0.03 |
| Apr | 4.05 | 4.10 | -0.05 |
| May | 3.30 | 3.26 | 0.04 |
| Jun | 4.57 | 4.39 | 0.18 |
| Jul | 4.79 | 4.71 | 0.08 |
| Aug | 4.28 | 4.23 | 0.05 |
| Sep | 3.79 | 3.67 | 0.12 |
| Oct | 3.28 | 3.39 | -0.11 |
| Nov | 3.89 | 3.84 | 0.05 |
| Dec | 4.82 | 4.71 | 0.11 |
51.14 | 50.44 | 0.70 |