| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.95 | -0.19 |
| Feb | 0.79 | 0.90 | -0.11 |
| Mar | 1.59 | 1.74 | -0.15 |
| Apr | 2.87 | 3.13 | -0.26 |
| May | 4.14 | 4.25 | -0.11 |
| Jun | 4.64 | 4.79 | -0.15 |
| Jul | 4.18 | 4.46 | -0.28 |
| Aug | 4.52 | 4.35 | 0.17 |
| Sep | 3.29 | 3.35 | -0.06 |
| Oct | 2.81 | 2.94 | -0.13 |
| Nov | 1.59 | 1.70 | -0.11 |
| Dec | 1.08 | 1.32 | -0.24 |
32.26 | 33.88 | -1.62 |