| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 10.70 | 11.39 | -0.69 |
| Feb | 7.54 | 7.96 | -0.42 |
| Mar | 7.56 | 7.99 | -0.43 |
| Apr | 5.05 | 5.25 | -0.20 |
| May | 2.54 | 2.43 | 0.11 |
| Jun | 1.44 | 1.39 | 0.05 |
| Jul | 0.30 | 0.25 | 0.05 |
| Aug | 0.47 | 0.45 | 0.02 |
| Sep | 1.65 | 1.74 | -0.09 |
| Oct | 4.98 | 5.17 | -0.19 |
| Nov | 9.87 | 10.13 | -0.26 |
| Dec | 12.48 | 13.06 | -0.58 |
64.58 | 67.21 | -2.63 |