| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.92 | -0.18 |
| Feb | 0.77 | 0.90 | -0.13 |
| Mar | 1.57 | 1.67 | -0.10 |
| Apr | 2.89 | 3.05 | -0.16 |
| May | 4.20 | 4.26 | -0.06 |
| Jun | 4.67 | 4.74 | -0.07 |
| Jul | 4.20 | 4.27 | -0.07 |
| Aug | 4.46 | 4.59 | -0.13 |
| Sep | 3.23 | 3.29 | -0.06 |
| Oct | 2.62 | 2.67 | -0.05 |
| Nov | 1.56 | 1.65 | -0.09 |
| Dec | 1.04 | 1.25 | -0.21 |
31.95 | 33.26 | -1.31 |