| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.17 | 1.26 | -0.09 |
| Feb | 1.50 | 1.63 | -0.13 |
| Mar | 2.38 | 2.50 | -0.12 |
| Apr | 3.97 | 4.00 | -0.03 |
| May | 5.41 | 5.50 | -0.09 |
| Jun | 5.09 | 5.36 | -0.27 |
| Jul | 4.41 | 4.45 | -0.04 |
| Aug | 4.42 | 4.35 | 0.07 |
| Sep | 3.90 | 4.18 | -0.28 |
| Oct | 3.20 | 3.23 | -0.03 |
| Nov | 2.17 | 2.27 | -0.10 |
| Dec | 1.61 | 1.72 | -0.11 |
39.23 | 40.45 | -1.22 |