| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.81 | 0.98 | -0.17 |
| Feb | 0.82 | 0.95 | -0.13 |
| Mar | 1.66 | 1.76 | -0.10 |
| Apr | 2.93 | 3.12 | -0.19 |
| May | 4.21 | 4.28 | -0.07 |
| Jun | 4.78 | 4.99 | -0.21 |
| Jul | 4.25 | 4.23 | 0.02 |
| Aug | 4.66 | 4.46 | 0.20 |
| Sep | 3.40 | 3.35 | 0.05 |
| Oct | 2.77 | 2.96 | -0.19 |
| Nov | 1.63 | 1.74 | -0.11 |
| Dec | 1.17 | 1.35 | -0.18 |
33.09 | 34.17 | -1.08 |