| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.59 | -0.10 |
| Feb | 2.82 | 2.96 | -0.14 |
| Mar | 4.08 | 4.18 | -0.10 |
| Apr | 3.92 | 4.00 | -0.08 |
| May | 4.09 | 4.07 | 0.02 |
| Jun | 4.52 | 4.70 | -0.18 |
| Jul | 4.80 | 4.68 | 0.12 |
| Aug | 4.52 | 4.60 | -0.08 |
| Sep | 4.42 | 4.48 | -0.06 |
| Oct | 4.38 | 4.35 | 0.03 |
| Nov | 3.48 | 3.55 | -0.07 |
| Dec | 4.37 | 4.42 | -0.05 |
48.89 | 49.58 | -0.69 |