| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.06 | 4.08 | -0.02 |
| Feb | 4.58 | 4.52 | 0.06 |
| Mar | 4.71 | 4.85 | -0.14 |
| Apr | 4.92 | 4.99 | -0.07 |
| May | 4.98 | 5.17 | -0.19 |
| Jun | 4.21 | 4.27 | -0.06 |
| Jul | 4.38 | 4.54 | -0.16 |
| Aug | 3.83 | 3.96 | -0.13 |
| Sep | 3.72 | 3.79 | -0.07 |
| Oct | 3.56 | 3.55 | 0.01 |
| Nov | 3.65 | 3.65 | 0.00 |
| Dec | 4.67 | 4.75 | -0.08 |
51.27 | 52.12 | -0.85 |