| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.18 | 3.23 | -0.05 |
| Feb | 2.67 | 2.51 | 0.16 |
| Mar | 3.62 | 3.34 | 0.28 |
| Apr | 3.60 | 3.57 | 0.03 |
| May | 4.10 | 4.39 | -0.29 |
| Jun | 4.31 | 4.27 | 0.04 |
| Jul | 4.22 | 4.09 | 0.13 |
| Aug | 3.37 | 3.59 | -0.22 |
| Sep | 3.81 | 3.59 | 0.22 |
| Oct | 2.90 | 2.74 | 0.16 |
| Nov | 3.00 | 3.05 | -0.05 |
| Dec | 3.31 | 3.23 | 0.08 |
42.09 | 41.60 | 0.49 |