| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.65 | 2.92 | -0.27 |
| Feb | 2.24 | 2.35 | -0.11 |
| Mar | 3.19 | 3.33 | -0.14 |
| Apr | 3.84 | 3.91 | -0.07 |
| May | 4.29 | 4.13 | 0.16 |
| Jun | 4.46 | 4.48 | -0.02 |
| Jul | 4.24 | 4.05 | 0.19 |
| Aug | 3.37 | 3.34 | 0.03 |
| Sep | 3.13 | 3.11 | 0.02 |
| Oct | 2.74 | 2.86 | -0.12 |
| Nov | 2.76 | 2.83 | -0.07 |
| Dec | 2.82 | 3.04 | -0.22 |
39.73 | 40.35 | -0.62 |