| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.77 | -0.18 |
| Feb | 2.94 | 3.09 | -0.15 |
| Mar | 4.28 | 4.42 | -0.14 |
| Apr | 3.66 | 3.81 | -0.15 |
| May | 3.95 | 3.91 | 0.04 |
| Jun | 4.21 | 4.28 | -0.07 |
| Jul | 4.57 | 4.62 | -0.05 |
| Aug | 4.38 | 4.50 | -0.12 |
| Sep | 3.99 | 4.07 | -0.08 |
| Oct | 4.07 | 4.25 | -0.18 |
| Nov | 3.42 | 3.45 | -0.03 |
| Dec | 4.33 | 4.56 | -0.23 |
47.39 | 48.73 | -1.34 |