| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 8.02 | 8.82 | -0.80 |
| Feb | 7.82 | 8.61 | -0.79 |
| Mar | 5.33 | 5.75 | -0.42 |
| Apr | 2.68 | 2.65 | 0.03 |
| May | 1.30 | 1.48 | -0.18 |
| Jun | 0.30 | 0.39 | -0.09 |
| Jul | 0.01 | 0.02 | -0.01 |
| Aug | 0.04 | 0.06 | -0.02 |
| Sep | 0.15 | 0.16 | -0.01 |
| Oct | 1.85 | 1.96 | -0.11 |
| Nov | 4.14 | 4.52 | -0.38 |
| Dec | 8.40 | 9.25 | -0.85 |
40.04 | 43.67 | -3.63 |