| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.68 | 4.74 | -0.06 |
| Feb | 3.87 | 3.87 | 0.00 |
| Mar | 4.57 | 4.48 | 0.09 |
| Apr | 4.61 | 4.67 | -0.06 |
| May | 4.39 | 4.57 | -0.18 |
| Jun | 4.70 | 4.73 | -0.03 |
| Jul | 4.56 | 5.10 | -0.54 |
| Aug | 4.97 | 5.45 | -0.48 |
| Sep | 4.54 | 4.59 | -0.05 |
| Oct | 3.96 | 3.79 | 0.17 |
| Nov | 4.17 | 4.07 | 0.10 |
| Dec | 4.61 | 4.88 | -0.27 |
53.63 | 54.94 | -1.31 |