| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.78 | 2.89 | -0.11 |
| Feb | 2.33 | 2.42 | -0.09 |
| Mar | 3.12 | 3.30 | -0.18 |
| Apr | 4.16 | 4.35 | -0.19 |
| May | 4.53 | 4.67 | -0.14 |
| Jun | 4.99 | 5.01 | -0.02 |
| Jul | 4.13 | 4.17 | -0.04 |
| Aug | 3.42 | 3.24 | 0.18 |
| Sep | 3.31 | 3.38 | -0.07 |
| Oct | 3.13 | 3.18 | -0.05 |
| Nov | 3.39 | 3.44 | -0.05 |
| Dec | 2.77 | 2.90 | -0.13 |
42.06 | 42.95 | -0.89 |