| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.92 | 3.15 | -0.23 |
| Feb | 2.39 | 2.45 | -0.06 |
| Mar | 3.49 | 3.54 | -0.05 |
| Apr | 3.87 | 3.96 | -0.09 |
| May | 4.23 | 4.24 | -0.01 |
| Jun | 4.39 | 4.57 | -0.18 |
| Jul | 4.47 | 4.49 | -0.02 |
| Aug | 3.61 | 3.58 | 0.03 |
| Sep | 3.24 | 3.29 | -0.05 |
| Oct | 2.90 | 2.91 | -0.01 |
| Nov | 2.85 | 2.95 | -0.10 |
| Dec | 3.05 | 3.14 | -0.09 |
41.41 | 42.27 | -0.86 |