| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.48 | -0.20 |
| Feb | 3.07 | 3.02 | 0.05 |
| Mar | 4.07 | 4.13 | -0.06 |
| Apr | 4.55 | 4.70 | -0.15 |
| May | 4.87 | 4.85 | 0.02 |
| Jun | 4.88 | 4.71 | 0.17 |
| Jul | 4.29 | 4.05 | 0.24 |
| Aug | 3.42 | 3.36 | 0.06 |
| Sep | 3.21 | 3.26 | -0.05 |
| Oct | 3.27 | 3.33 | -0.06 |
| Nov | 3.18 | 3.26 | -0.08 |
| Dec | 3.66 | 3.81 | -0.15 |
45.75 | 45.96 | -0.21 |