| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.00 | 3.43 | -0.43 |
| Feb | 2.42 | 2.65 | -0.23 |
| Mar | 3.22 | 3.27 | -0.05 |
| Apr | 3.44 | 3.47 | -0.03 |
| May | 3.82 | 3.95 | -0.13 |
| Jun | 4.45 | 4.45 | 0.00 |
| Jul | 4.34 | 4.31 | 0.03 |
| Aug | 3.57 | 3.66 | -0.09 |
| Sep | 3.55 | 3.72 | -0.17 |
| Oct | 3.00 | 3.17 | -0.17 |
| Nov | 2.94 | 3.12 | -0.18 |
| Dec | 3.17 | 3.36 | -0.19 |
40.92 | 42.56 | -1.64 |