| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.54 | 1.68 | -0.14 |
| Feb | 1.42 | 1.44 | -0.02 |
| Mar | 1.61 | 1.66 | -0.05 |
| Apr | 1.29 | 1.31 | -0.02 |
| May | 1.24 | 1.10 | 0.14 |
| Jun | 0.98 | 0.78 | 0.20 |
| Jul | 3.08 | 2.88 | 0.20 |
| Aug | 3.26 | 3.17 | 0.09 |
| Sep | 2.13 | 2.00 | 0.13 |
| Oct | 1.87 | 1.59 | 0.28 |
| Nov | 1.55 | 1.48 | 0.07 |
| Dec | 1.59 | 1.70 | -0.11 |
21.56 | 20.79 | 0.77 |