| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 3.94 | 0.11 |
| Feb | 4.02 | 3.90 | 0.12 |
| Mar | 4.67 | 4.15 | 0.52 |
| Apr | 4.37 | 4.26 | 0.11 |
| May | 3.95 | 3.65 | 0.30 |
| Jun | 4.37 | 3.76 | 0.61 |
| Jul | 4.74 | 4.65 | 0.09 |
| Aug | 3.49 | 3.15 | 0.34 |
| Sep | 3.13 | 2.84 | 0.29 |
| Oct | 2.66 | 2.28 | 0.38 |
| Nov | 3.21 | 2.96 | 0.25 |
| Dec | 4.26 | 4.23 | 0.03 |
46.92 | 43.77 | 3.15 |