| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.94 | -0.22 |
| Feb | 0.76 | 0.88 | -0.12 |
| Mar | 1.56 | 1.68 | -0.12 |
| Apr | 2.86 | 3.10 | -0.24 |
| May | 4.12 | 4.34 | -0.22 |
| Jun | 4.40 | 4.62 | -0.22 |
| Jul | 4.18 | 4.27 | -0.09 |
| Aug | 4.28 | 4.21 | 0.07 |
| Sep | 3.22 | 3.33 | -0.11 |
| Oct | 2.78 | 2.76 | 0.02 |
| Nov | 1.54 | 1.69 | -0.15 |
| Dec | 1.01 | 1.31 | -0.30 |
31.43 | 33.13 | -1.70 |