| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.97 | -0.20 |
| Feb | 0.77 | 0.92 | -0.15 |
| Mar | 1.61 | 1.74 | -0.13 |
| Apr | 2.91 | 3.14 | -0.23 |
| May | 4.14 | 4.20 | -0.06 |
| Jun | 4.54 | 4.77 | -0.23 |
| Jul | 4.25 | 4.37 | -0.12 |
| Aug | 4.57 | 4.38 | 0.19 |
| Sep | 3.33 | 3.28 | 0.05 |
| Oct | 2.73 | 2.89 | -0.16 |
| Nov | 1.57 | 1.73 | -0.16 |
| Dec | 1.11 | 1.32 | -0.21 |
32.30 | 33.71 | -1.41 |