| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.72 | 6.17 | 0.55 |
| Feb | 5.15 | 4.77 | 0.38 |
| Mar | 5.36 | 4.93 | 0.43 |
| Apr | 4.39 | 3.93 | 0.46 |
| May | 2.98 | 2.74 | 0.24 |
| Jun | 1.63 | 1.47 | 0.16 |
| Jul | 0.36 | 0.30 | 0.06 |
| Aug | 0.46 | 0.38 | 0.08 |
| Sep | 1.54 | 1.41 | 0.13 |
| Oct | 3.87 | 3.48 | 0.39 |
| Nov | 6.77 | 6.30 | 0.47 |
| Dec | 8.03 | 7.42 | 0.61 |
47.26 | 43.30 | 3.96 |