| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.86 | -0.49 |
| Feb | 2.91 | 3.39 | -0.48 |
| Mar | 3.91 | 4.37 | -0.46 |
| Apr | 3.93 | 4.49 | -0.56 |
| May | 3.44 | 3.65 | -0.21 |
| Jun | 4.19 | 4.39 | -0.20 |
| Jul | 3.81 | 4.01 | -0.20 |
| Aug | 3.86 | 4.13 | -0.27 |
| Sep | 4.03 | 4.44 | -0.41 |
| Oct | 4.50 | 4.91 | -0.41 |
| Nov | 3.68 | 3.97 | -0.29 |
| Dec | 4.11 | 4.65 | -0.54 |
45.74 | 50.26 | -4.52 |