| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.68 | 0.04 |
| Feb | 0.79 | 0.75 | 0.04 |
| Mar | 1.49 | 1.46 | 0.03 |
| Apr | 2.51 | 2.55 | -0.04 |
| May | 3.63 | 3.57 | 0.06 |
| Jun | 4.24 | 4.34 | -0.10 |
| Jul | 4.06 | 3.95 | 0.11 |
| Aug | 3.79 | 3.91 | -0.12 |
| Sep | 2.86 | 2.92 | -0.06 |
| Oct | 2.64 | 2.70 | -0.06 |
| Nov | 1.35 | 1.33 | 0.02 |
| Dec | 0.88 | 0.92 | -0.04 |
28.96 | 29.08 | -0.12 |