| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.94 | -0.09 |
| Feb | 4.49 | 4.46 | 0.03 |
| Mar | 4.63 | 4.78 | -0.15 |
| Apr | 4.92 | 5.05 | -0.13 |
| May | 5.19 | 5.40 | -0.21 |
| Jun | 4.37 | 4.36 | 0.01 |
| Jul | 4.31 | 4.56 | -0.25 |
| Aug | 3.70 | 3.27 | 0.43 |
| Sep | 3.36 | 3.42 | -0.06 |
| Oct | 3.90 | 3.96 | -0.06 |
| Nov | 3.89 | 3.88 | 0.01 |
| Dec | 4.79 | 4.76 | 0.03 |
51.40 | 51.84 | -0.44 |