| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.96 | -0.19 |
| Feb | 0.78 | 0.90 | -0.12 |
| Mar | 1.61 | 1.73 | -0.12 |
| Apr | 2.90 | 3.14 | -0.24 |
| May | 4.16 | 4.21 | -0.05 |
| Jun | 4.55 | 4.73 | -0.18 |
| Jul | 4.23 | 4.44 | -0.21 |
| Aug | 4.55 | 4.38 | 0.17 |
| Sep | 3.33 | 3.28 | 0.05 |
| Oct | 2.75 | 2.88 | -0.13 |
| Nov | 1.57 | 1.72 | -0.15 |
| Dec | 1.10 | 1.29 | -0.19 |
32.30 | 33.66 | -1.36 |