| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.81 | 4.11 | -0.30 |
| Feb | 3.25 | 3.47 | -0.22 |
| Mar | 4.18 | 4.30 | -0.12 |
| Apr | 4.01 | 4.36 | -0.35 |
| May | 3.83 | 4.03 | -0.20 |
| Jun | 4.43 | 4.56 | -0.13 |
| Jul | 4.08 | 4.35 | -0.27 |
| Aug | 4.55 | 4.57 | -0.02 |
| Sep | 3.86 | 4.04 | -0.18 |
| Oct | 3.54 | 3.53 | 0.01 |
| Nov | 3.53 | 3.59 | -0.06 |
| Dec | 3.95 | 4.28 | -0.33 |
47.02 | 49.19 | -2.17 |