| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.75 | 5.97 | 0.78 |
| Feb | 5.22 | 4.71 | 0.51 |
| Mar | 5.35 | 4.80 | 0.55 |
| Apr | 4.24 | 3.65 | 0.59 |
| May | 2.88 | 2.61 | 0.27 |
| Jun | 1.52 | 1.34 | 0.18 |
| Jul | 0.35 | 0.34 | 0.01 |
| Aug | 0.43 | 0.37 | 0.06 |
| Sep | 1.50 | 1.38 | 0.12 |
| Oct | 3.79 | 3.27 | 0.52 |
| Nov | 6.79 | 6.02 | 0.77 |
| Dec | 8.13 | 7.33 | 0.80 |
46.95 | 41.79 | 5.16 |