| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 4.06 | -0.39 |
| Feb | 3.35 | 3.60 | -0.25 |
| Mar | 4.81 | 5.21 | -0.40 |
| Apr | 4.21 | 4.52 | -0.31 |
| May | 3.37 | 3.30 | 0.07 |
| Jun | 3.54 | 3.60 | -0.06 |
| Jul | 3.08 | 3.05 | 0.03 |
| Aug | 3.59 | 3.70 | -0.11 |
| Sep | 3.90 | 3.69 | 0.21 |
| Oct | 4.35 | 4.44 | -0.09 |
| Nov | 3.96 | 3.99 | -0.03 |
| Dec | 4.48 | 4.95 | -0.47 |
46.31 | 48.11 | -1.80 |