| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.79 | -0.20 |
| Feb | 3.02 | 3.17 | -0.15 |
| Mar | 3.70 | 4.01 | -0.31 |
| Apr | 3.36 | 3.53 | -0.17 |
| May | 3.63 | 3.24 | 0.39 |
| Jun | 4.04 | 4.00 | 0.04 |
| Jul | 3.79 | 3.79 | 0.00 |
| Aug | 4.17 | 4.24 | -0.07 |
| Sep | 3.71 | 3.95 | -0.24 |
| Oct | 3.19 | 3.39 | -0.20 |
| Nov | 3.15 | 3.27 | -0.12 |
| Dec | 3.41 | 3.75 | -0.34 |
42.76 | 44.13 | -1.37 |