| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.72 | 6.15 | 0.57 |
| Feb | 5.15 | 4.77 | 0.38 |
| Mar | 5.36 | 4.91 | 0.45 |
| Apr | 4.39 | 3.76 | 0.63 |
| May | 2.98 | 2.68 | 0.30 |
| Jun | 1.63 | 1.43 | 0.20 |
| Jul | 0.36 | 0.31 | 0.05 |
| Aug | 0.46 | 0.38 | 0.08 |
| Sep | 1.54 | 1.40 | 0.14 |
| Oct | 3.87 | 3.43 | 0.44 |
| Nov | 6.77 | 6.22 | 0.55 |
| Dec | 8.03 | 7.40 | 0.63 |
47.26 | 42.84 | 4.42 |