| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.89 | 3.03 | -0.14 |
| Feb | 2.59 | 2.65 | -0.06 |
| Mar | 3.79 | 3.83 | -0.04 |
| Apr | 3.34 | 3.38 | -0.04 |
| May | 4.18 | 4.35 | -0.17 |
| Jun | 4.29 | 4.50 | -0.21 |
| Jul | 4.46 | 4.49 | -0.03 |
| Aug | 3.94 | 3.92 | 0.02 |
| Sep | 4.32 | 4.37 | -0.05 |
| Oct | 3.85 | 3.95 | -0.10 |
| Nov | 3.06 | 3.12 | -0.06 |
| Dec | 3.67 | 3.70 | -0.03 |
44.38 | 45.29 | -0.91 |