| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.85 | 2.81 | 0.04 |
| Feb | 2.40 | 2.46 | -0.06 |
| Mar | 3.24 | 3.21 | 0.03 |
| Apr | 2.49 | 2.57 | -0.08 |
| May | 3.38 | 3.65 | -0.27 |
| Jun | 7.26 | 6.77 | 0.49 |
| Jul | 6.71 | 6.25 | 0.46 |
| Aug | 6.98 | 6.80 | 0.18 |
| Sep | 6.98 | 7.19 | -0.21 |
| Oct | 4.38 | 4.56 | -0.18 |
| Nov | 2.64 | 2.66 | -0.02 |
| Dec | 2.35 | 2.52 | -0.17 |
51.66 | 51.45 | 0.21 |