| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 8.02 | 8.94 | -0.92 |
| Feb | 7.82 | 8.74 | -0.92 |
| Mar | 5.33 | 5.89 | -0.56 |
| Apr | 2.68 | 2.74 | -0.06 |
| May | 1.30 | 1.50 | -0.20 |
| Jun | 0.30 | 0.40 | -0.10 |
| Jul | 0.01 | 0.02 | -0.01 |
| Aug | 0.04 | 0.06 | -0.02 |
| Sep | 0.15 | 0.16 | -0.01 |
| Oct | 1.85 | 1.99 | -0.14 |
| Nov | 4.14 | 4.56 | -0.42 |
| Dec | 8.40 | 9.38 | -0.98 |
40.04 | 44.38 | -4.34 |