| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.71 | -0.12 |
| Feb | 2.94 | 2.96 | -0.02 |
| Mar | 4.23 | 4.25 | -0.02 |
| Apr | 3.72 | 3.76 | -0.04 |
| May | 3.97 | 3.86 | 0.11 |
| Jun | 4.23 | 4.28 | -0.05 |
| Jul | 4.45 | 4.57 | -0.12 |
| Aug | 4.45 | 4.36 | 0.09 |
| Sep | 3.98 | 3.99 | -0.01 |
| Oct | 4.14 | 4.25 | -0.11 |
| Nov | 3.35 | 3.37 | -0.02 |
| Dec | 4.27 | 4.43 | -0.16 |
47.32 | 47.79 | -0.47 |