| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 8.92 | 8.27 | 0.65 |
| Feb | 6.86 | 6.59 | 0.27 |
| Mar | 6.98 | 6.13 | 0.85 |
| Apr | 4.53 | 4.22 | 0.31 |
| May | 2.56 | 2.49 | 0.07 |
| Jun | 1.41 | 1.38 | 0.03 |
| Jul | 0.35 | 0.33 | 0.02 |
| Aug | 0.44 | 0.41 | 0.03 |
| Sep | 1.62 | 1.60 | 0.02 |
| Oct | 4.52 | 4.15 | 0.37 |
| Nov | 8.51 | 8.23 | 0.28 |
| Dec | 10.63 | 10.16 | 0.47 |
57.33 | 53.96 | 3.37 |