| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.12 | 3.25 | -0.13 |
| Feb | 2.46 | 2.53 | -0.07 |
| Mar | 3.48 | 3.53 | -0.05 |
| Apr | 4.52 | 4.80 | -0.28 |
| May | 4.81 | 4.97 | -0.16 |
| Jun | 5.00 | 5.17 | -0.17 |
| Jul | 4.36 | 4.23 | 0.13 |
| Aug | 3.19 | 3.21 | -0.02 |
| Sep | 3.28 | 3.50 | -0.22 |
| Oct | 3.54 | 3.48 | 0.06 |
| Nov | 3.53 | 3.66 | -0.13 |
| Dec | 3.10 | 3.22 | -0.12 |
44.39 | 45.55 | -1.16 |