| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.90 | -0.07 |
| Feb | 0.82 | 0.89 | -0.07 |
| Mar | 1.62 | 1.69 | -0.07 |
| Apr | 2.88 | 2.95 | -0.07 |
| May | 4.04 | 4.27 | -0.23 |
| Jun | 4.79 | 5.05 | -0.26 |
| Jul | 4.16 | 4.21 | -0.05 |
| Aug | 4.48 | 4.63 | -0.15 |
| Sep | 3.26 | 3.40 | -0.14 |
| Oct | 2.58 | 2.61 | -0.03 |
| Nov | 1.52 | 1.63 | -0.11 |
| Dec | 1.13 | 1.22 | -0.09 |
32.11 | 33.45 | -1.34 |