| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.94 | 4.99 | -0.05 |
| Feb | 4.04 | 4.35 | -0.31 |
| Mar | 4.38 | 4.67 | -0.29 |
| Apr | 4.21 | 4.47 | -0.26 |
| May | 4.72 | 4.61 | 0.11 |
| Jun | 4.66 | 5.12 | -0.46 |
| Jul | 3.69 | 3.54 | 0.15 |
| Aug | 3.71 | 4.23 | -0.52 |
| Sep | 3.91 | 4.28 | -0.37 |
| Oct | 4.91 | 4.80 | 0.11 |
| Nov | 4.58 | 4.64 | -0.06 |
| Dec | 5.17 | 5.39 | -0.22 |
52.92 | 55.09 | -2.17 |