| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 12.59 | 10.32 | 2.27 |
| Feb | 8.58 | 7.29 | 1.29 |
| Mar | 9.44 | 8.20 | 1.24 |
| Apr | 6.74 | 5.71 | 1.03 |
| May | 4.02 | 3.46 | 0.56 |
| Jun | 2.88 | 2.68 | 0.20 |
| Jul | 0.98 | 0.94 | 0.04 |
| Aug | 1.34 | 1.17 | 0.17 |
| Sep | 3.36 | 2.55 | 0.81 |
| Oct | 7.94 | 6.88 | 1.06 |
| Nov | 12.77 | 11.44 | 1.33 |
| Dec | 13.07 | 11.31 | 1.76 |
83.71 | 71.95 | 11.76 |