| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 4.12 | -0.42 |
| Feb | 2.89 | 3.33 | -0.44 |
| Mar | 4.06 | 4.45 | -0.39 |
| Apr | 4.35 | 4.65 | -0.30 |
| May | 4.39 | 4.09 | 0.30 |
| Jun | 5.27 | 4.85 | 0.42 |
| Jul | 4.61 | 4.58 | 0.03 |
| Aug | 4.51 | 4.52 | -0.01 |
| Sep | 5.46 | 5.25 | 0.21 |
| Oct | 5.14 | 5.60 | -0.46 |
| Nov | 3.86 | 3.96 | -0.10 |
| Dec | 4.18 | 5.01 | -0.83 |
52.42 | 54.41 | -1.99 |