| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.34 | 4.54 | -0.20 |
| Feb | 3.30 | 3.41 | -0.11 |
| Mar | 3.71 | 3.69 | 0.02 |
| Apr | 4.03 | 4.19 | -0.16 |
| May | 5.20 | 5.51 | -0.31 |
| Jun | 5.92 | 5.97 | -0.05 |
| Jul | 4.52 | 4.32 | 0.20 |
| Aug | 5.47 | 5.45 | 0.02 |
| Sep | 5.26 | 5.75 | -0.49 |
| Oct | 5.41 | 5.57 | -0.16 |
| Nov | 4.46 | 4.74 | -0.28 |
| Dec | 4.46 | 4.34 | 0.12 |
56.08 | 57.48 | -1.40 |