| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.72 | 4.93 | -0.21 |
| Feb | 4.77 | 4.92 | -0.15 |
| Mar | 5.06 | 5.23 | -0.17 |
| Apr | 4.37 | 4.27 | 0.10 |
| May | 3.50 | 3.73 | -0.23 |
| Jun | 4.25 | 4.25 | 0.00 |
| Jul | 4.73 | 4.89 | -0.16 |
| Aug | 4.02 | 4.15 | -0.13 |
| Sep | 3.37 | 3.54 | -0.17 |
| Oct | 3.14 | 3.19 | -0.05 |
| Nov | 4.09 | 4.18 | -0.09 |
| Dec | 5.02 | 5.14 | -0.12 |
51.04 | 52.42 | -1.38 |