| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.95 | -0.21 |
| Feb | 0.77 | 0.91 | -0.14 |
| Mar | 1.58 | 1.70 | -0.12 |
| Apr | 2.88 | 3.07 | -0.19 |
| May | 4.17 | 4.24 | -0.07 |
| Jun | 4.65 | 4.75 | -0.10 |
| Jul | 4.17 | 4.31 | -0.14 |
| Aug | 4.48 | 4.58 | -0.10 |
| Sep | 3.25 | 3.29 | -0.04 |
| Oct | 2.63 | 2.72 | -0.09 |
| Nov | 1.56 | 1.68 | -0.12 |
| Dec | 1.04 | 1.28 | -0.24 |
31.92 | 33.48 | -1.56 |