| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.71 | -0.17 |
| Feb | 2.96 | 3.10 | -0.14 |
| Mar | 4.28 | 4.23 | 0.05 |
| Apr | 3.74 | 3.89 | -0.15 |
| May | 3.85 | 3.74 | 0.11 |
| Jun | 4.18 | 4.18 | 0.00 |
| Jul | 4.21 | 4.07 | 0.14 |
| Aug | 4.44 | 4.79 | -0.35 |
| Sep | 3.95 | 3.91 | 0.04 |
| Oct | 4.04 | 4.17 | -0.13 |
| Nov | 3.34 | 3.32 | 0.02 |
| Dec | 4.23 | 4.55 | -0.32 |
46.76 | 47.66 | -0.90 |