| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.55 | 4.81 | -0.26 |
| Feb | 4.21 | 4.42 | -0.21 |
| Mar | 4.58 | 4.79 | -0.21 |
| Apr | 3.96 | 4.13 | -0.17 |
| May | 3.67 | 3.78 | -0.11 |
| Jun | 4.22 | 4.21 | 0.01 |
| Jul | 4.17 | 4.05 | 0.12 |
| Aug | 4.71 | 5.23 | -0.52 |
| Sep | 3.87 | 4.07 | -0.20 |
| Oct | 3.54 | 3.81 | -0.27 |
| Nov | 3.73 | 3.95 | -0.22 |
| Dec | 4.77 | 5.13 | -0.36 |
49.98 | 52.38 | -2.40 |