| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.55 | 5.42 | -0.87 |
| Feb | 4.35 | 4.55 | -0.20 |
| Mar | 4.81 | 5.04 | -0.23 |
| Apr | 4.71 | 5.43 | -0.72 |
| May | 3.52 | 3.55 | -0.03 |
| Jun | 6.32 | 6.68 | -0.36 |
| Jul | 6.68 | 7.16 | -0.48 |
| Aug | 6.76 | 6.84 | -0.08 |
| Sep | 6.50 | 6.54 | -0.04 |
| Oct | 4.18 | 4.25 | -0.07 |
| Nov | 4.02 | 4.39 | -0.37 |
| Dec | 4.61 | 5.17 | -0.56 |
61.01 | 65.02 | -4.01 |