| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.59 | -0.20 |
| Feb | 2.77 | 2.89 | -0.12 |
| Mar | 4.27 | 4.42 | -0.15 |
| Apr | 3.64 | 3.62 | 0.02 |
| May | 3.45 | 3.64 | -0.19 |
| Jun | 4.13 | 4.30 | -0.17 |
| Jul | 4.66 | 4.52 | 0.14 |
| Aug | 4.49 | 4.75 | -0.26 |
| Sep | 4.25 | 4.18 | 0.07 |
| Oct | 3.86 | 3.98 | -0.12 |
| Nov | 3.15 | 3.20 | -0.05 |
| Dec | 4.15 | 4.38 | -0.23 |
46.21 | 47.47 | -1.26 |