| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.68 | 4.79 | -0.11 |
| Feb | 4.70 | 4.80 | -0.10 |
| Mar | 4.82 | 4.86 | -0.04 |
| Apr | 3.97 | 4.13 | -0.16 |
| May | 3.52 | 3.50 | 0.02 |
| Jun | 4.46 | 4.34 | 0.12 |
| Jul | 4.81 | 4.92 | -0.11 |
| Aug | 4.29 | 4.33 | -0.04 |
| Sep | 3.72 | 3.76 | -0.04 |
| Oct | 3.37 | 3.47 | -0.10 |
| Nov | 3.99 | 4.06 | -0.07 |
| Dec | 4.67 | 4.77 | -0.10 |
51.00 | 51.73 | -0.73 |