| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.73 | -0.22 |
| Feb | 2.90 | 2.98 | -0.08 |
| Mar | 3.85 | 3.92 | -0.07 |
| Apr | 3.43 | 3.70 | -0.27 |
| May | 3.83 | 3.91 | -0.08 |
| Jun | 4.50 | 4.60 | -0.10 |
| Jul | 5.49 | 5.35 | 0.14 |
| Aug | 5.27 | 5.32 | -0.05 |
| Sep | 5.11 | 4.95 | 0.16 |
| Oct | 3.94 | 4.20 | -0.26 |
| Nov | 3.20 | 3.46 | -0.26 |
| Dec | 3.30 | 3.59 | -0.29 |
48.33 | 49.71 | -1.38 |