| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.58 | -0.07 |
| Feb | 2.92 | 3.01 | -0.09 |
| Mar | 4.09 | 4.04 | 0.05 |
| Apr | 3.54 | 3.65 | -0.11 |
| May | 3.76 | 3.89 | -0.13 |
| Jun | 4.40 | 4.19 | 0.21 |
| Jul | 5.15 | 5.53 | -0.38 |
| Aug | 4.86 | 5.34 | -0.48 |
| Sep | 4.69 | 5.06 | -0.37 |
| Oct | 4.06 | 4.52 | -0.46 |
| Nov | 3.06 | 3.13 | -0.07 |
| Dec | 3.68 | 3.74 | -0.06 |
47.72 | 49.68 | -1.96 |