| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.42 | -0.02 |
| Feb | 2.86 | 2.87 | -0.01 |
| Mar | 3.91 | 3.94 | -0.03 |
| Apr | 4.89 | 4.93 | -0.04 |
| May | 5.18 | 5.11 | 0.07 |
| Jun | 5.12 | 5.02 | 0.10 |
| Jul | 4.38 | 4.23 | 0.15 |
| Aug | 3.66 | 3.59 | 0.07 |
| Sep | 3.19 | 3.25 | -0.06 |
| Oct | 3.38 | 3.36 | 0.02 |
| Nov | 3.56 | 3.52 | 0.04 |
| Dec | 3.59 | 3.67 | -0.08 |
47.12 | 46.91 | 0.21 |