| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.23 | 4.36 | -0.13 |
| Feb | 3.73 | 3.88 | -0.15 |
| Mar | 4.56 | 4.64 | -0.08 |
| Apr | 4.28 | 4.36 | -0.08 |
| May | 3.87 | 4.10 | -0.23 |
| Jun | 4.27 | 4.43 | -0.16 |
| Jul | 4.32 | 4.50 | -0.18 |
| Aug | 4.41 | 4.67 | -0.26 |
| Sep | 3.95 | 4.17 | -0.22 |
| Oct | 3.61 | 3.81 | -0.20 |
| Nov | 3.82 | 4.02 | -0.20 |
| Dec | 4.38 | 4.77 | -0.39 |
49.43 | 51.71 | -2.28 |