| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.67 | -0.18 |
| Feb | 2.90 | 2.97 | -0.07 |
| Mar | 3.82 | 3.89 | -0.07 |
| Apr | 3.42 | 3.66 | -0.24 |
| May | 3.82 | 3.82 | 0.00 |
| Jun | 4.49 | 4.52 | -0.03 |
| Jul | 5.49 | 5.37 | 0.12 |
| Aug | 5.29 | 5.27 | 0.02 |
| Sep | 5.07 | 4.88 | 0.19 |
| Oct | 3.92 | 4.21 | -0.29 |
| Nov | 3.16 | 3.41 | -0.25 |
| Dec | 3.30 | 3.59 | -0.29 |
48.17 | 49.26 | -1.09 |