| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.39 | 4.69 | -0.30 |
| Feb | 4.65 | 4.88 | -0.23 |
| Mar | 4.99 | 5.03 | -0.04 |
| Apr | 4.55 | 4.99 | -0.44 |
| May | 3.96 | 4.17 | -0.21 |
| Jun | 4.62 | 4.71 | -0.09 |
| Jul | 4.72 | 4.97 | -0.25 |
| Aug | 3.50 | 3.49 | 0.01 |
| Sep | 3.62 | 3.67 | -0.05 |
| Oct | 3.15 | 2.95 | 0.20 |
| Nov | 3.66 | 3.67 | -0.01 |
| Dec | 5.35 | 5.20 | 0.15 |
51.16 | 52.42 | -1.26 |