| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.70 | -0.21 |
| Feb | 2.97 | 3.05 | -0.08 |
| Mar | 3.87 | 4.13 | -0.26 |
| Apr | 3.60 | 3.77 | -0.17 |
| May | 3.47 | 3.61 | -0.14 |
| Jun | 4.09 | 4.36 | -0.27 |
| Jul | 4.64 | 4.47 | 0.17 |
| Aug | 4.41 | 4.68 | -0.27 |
| Sep | 4.72 | 5.16 | -0.44 |
| Oct | 3.23 | 3.52 | -0.29 |
| Nov | 3.29 | 3.46 | -0.17 |
| Dec | 3.49 | 3.59 | -0.10 |
45.27 | 47.50 | -2.23 |