| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.66 | 4.73 | -0.07 |
| Feb | 4.70 | 4.80 | -0.10 |
| Mar | 4.94 | 4.88 | 0.06 |
| Apr | 3.99 | 3.96 | 0.03 |
| May | 3.84 | 3.92 | -0.08 |
| Jun | 4.52 | 4.55 | -0.03 |
| Jul | 4.61 | 4.83 | -0.22 |
| Aug | 4.38 | 4.67 | -0.29 |
| Sep | 4.20 | 4.35 | -0.15 |
| Oct | 3.54 | 3.59 | -0.05 |
| Nov | 4.17 | 4.27 | -0.10 |
| Dec | 4.58 | 4.77 | -0.19 |
52.13 | 53.32 | -1.19 |