| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.88 | 4.09 | -0.21 |
| Feb | 3.29 | 3.68 | -0.39 |
| Mar | 4.34 | 4.68 | -0.34 |
| Apr | 4.06 | 4.14 | -0.08 |
| May | 3.15 | 3.33 | -0.18 |
| Jun | 3.34 | 3.38 | -0.04 |
| Jul | 2.51 | 2.74 | -0.23 |
| Aug | 3.42 | 3.37 | 0.05 |
| Sep | 3.80 | 3.90 | -0.10 |
| Oct | 4.39 | 4.52 | -0.13 |
| Nov | 4.04 | 4.09 | -0.05 |
| Dec | 4.70 | 4.95 | -0.25 |
44.92 | 46.87 | -1.95 |