| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.76 | -0.03 |
| Feb | 0.79 | 0.86 | -0.07 |
| Mar | 1.49 | 1.55 | -0.06 |
| Apr | 2.71 | 2.76 | -0.05 |
| May | 4.08 | 4.03 | 0.05 |
| Jun | 4.27 | 4.30 | -0.03 |
| Jul | 4.36 | 4.28 | 0.08 |
| Aug | 4.02 | 4.05 | -0.03 |
| Sep | 3.29 | 3.20 | 0.09 |
| Oct | 2.77 | 2.86 | -0.09 |
| Nov | 1.54 | 1.60 | -0.06 |
| Dec | 1.04 | 1.14 | -0.10 |
31.09 | 31.39 | -0.30 |