| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.31 | 3.47 | -0.16 |
| Feb | 3.27 | 3.44 | -0.17 |
| Mar | 4.30 | 4.47 | -0.17 |
| Apr | 4.11 | 4.32 | -0.21 |
| May | 3.80 | 3.90 | -0.10 |
| Jun | 4.10 | 4.28 | -0.18 |
| Jul | 3.60 | 3.67 | -0.07 |
| Aug | 3.47 | 3.55 | -0.08 |
| Sep | 3.78 | 3.89 | -0.11 |
| Oct | 4.77 | 4.85 | -0.08 |
| Nov | 3.85 | 3.89 | -0.04 |
| Dec | 4.38 | 4.63 | -0.25 |
46.74 | 48.36 | -1.62 |