| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.06 | 3.92 | 0.14 |
| Feb | 3.21 | 3.32 | -0.11 |
| Mar | 4.25 | 4.33 | -0.08 |
| Apr | 4.63 | 4.84 | -0.21 |
| May | 4.93 | 4.98 | -0.05 |
| Jun | 4.79 | 5.08 | -0.29 |
| Jul | 4.97 | 5.19 | -0.22 |
| Aug | 4.72 | 4.75 | -0.03 |
| Sep | 4.63 | 4.53 | 0.10 |
| Oct | 3.75 | 3.55 | 0.20 |
| Nov | 3.67 | 3.72 | -0.05 |
| Dec | 3.93 | 4.12 | -0.19 |
51.54 | 52.33 | -0.79 |