| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.09 | 4.12 | -0.03 |
| Feb | 3.48 | 3.42 | 0.06 |
| Mar | 4.50 | 4.47 | 0.03 |
| Apr | 4.25 | 4.34 | -0.09 |
| May | 3.87 | 4.30 | -0.43 |
| Jun | 4.48 | 4.35 | 0.13 |
| Jul | 4.21 | 4.16 | 0.05 |
| Aug | 4.46 | 4.56 | -0.10 |
| Sep | 4.15 | 3.85 | 0.30 |
| Oct | 3.55 | 3.68 | -0.13 |
| Nov | 3.81 | 3.86 | -0.05 |
| Dec | 4.31 | 4.26 | 0.05 |
49.16 | 49.37 | -0.21 |