| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.01 | 1.07 | -0.06 |
| Feb | 0.97 | 0.98 | -0.01 |
| Mar | 1.71 | 1.68 | 0.03 |
| Apr | 2.99 | 3.06 | -0.07 |
| May | 3.86 | 3.53 | 0.33 |
| Jun | 4.46 | 4.30 | 0.16 |
| Jul | 3.68 | 3.42 | 0.26 |
| Aug | 3.85 | 3.58 | 0.27 |
| Sep | 3.72 | 3.33 | 0.39 |
| Oct | 2.86 | 2.92 | -0.06 |
| Nov | 1.79 | 1.84 | -0.05 |
| Dec | 1.31 | 1.41 | -0.10 |
32.21 | 31.12 | 1.09 |