| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 4.25 | -0.22 |
| Feb | 3.56 | 3.80 | -0.24 |
| Mar | 3.72 | 3.79 | -0.07 |
| Apr | 3.47 | 3.56 | -0.09 |
| May | 4.26 | 4.29 | -0.03 |
| Jun | 5.23 | 5.06 | 0.17 |
| Jul | 6.43 | 6.48 | -0.05 |
| Aug | 7.16 | 7.38 | -0.22 |
| Sep | 7.59 | 7.88 | -0.29 |
| Oct | 4.18 | 4.77 | -0.59 |
| Nov | 3.70 | 4.12 | -0.42 |
| Dec | 3.95 | 4.10 | -0.15 |
57.28 | 59.48 | -2.20 |