| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.11 | 3.24 | -0.13 |
| Feb | 2.77 | 2.88 | -0.11 |
| Mar | 3.96 | 4.12 | -0.16 |
| Apr | 3.63 | 3.61 | 0.02 |
| May | 4.22 | 4.27 | -0.05 |
| Jun | 4.28 | 4.24 | 0.04 |
| Jul | 4.46 | 4.35 | 0.11 |
| Aug | 4.27 | 4.00 | 0.27 |
| Sep | 4.46 | 4.54 | -0.08 |
| Oct | 4.22 | 4.26 | -0.04 |
| Nov | 3.43 | 3.31 | 0.12 |
| Dec | 3.70 | 3.95 | -0.25 |
46.51 | 46.77 | -0.26 |