| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.34 | 4.53 | -0.19 |
| Feb | 2.81 | 3.07 | -0.26 |
| Mar | 3.23 | 3.34 | -0.11 |
| Apr | 3.70 | 4.16 | -0.46 |
| May | 4.90 | 4.84 | 0.06 |
| Jun | 5.32 | 5.35 | -0.03 |
| Jul | 4.31 | 4.29 | 0.02 |
| Aug | 5.26 | 5.62 | -0.36 |
| Sep | 5.86 | 5.96 | -0.10 |
| Oct | 5.10 | 5.38 | -0.28 |
| Nov | 4.18 | 4.68 | -0.50 |
| Dec | 4.25 | 4.52 | -0.27 |
53.26 | 55.74 | -2.48 |