| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.52 | -0.17 |
| Feb | 3.18 | 3.29 | -0.11 |
| Mar | 3.45 | 3.55 | -0.10 |
| Apr | 3.22 | 3.41 | -0.19 |
| May | 3.63 | 3.74 | -0.11 |
| Jun | 4.89 | 4.86 | 0.03 |
| Jul | 5.12 | 5.05 | 0.07 |
| Aug | 5.88 | 5.55 | 0.33 |
| Sep | 5.80 | 5.73 | 0.07 |
| Oct | 3.19 | 3.38 | -0.19 |
| Nov | 3.13 | 3.28 | -0.15 |
| Dec | 3.45 | 3.50 | -0.05 |
48.29 | 48.86 | -0.57 |