| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.96 | -0.20 |
| Feb | 0.78 | 0.90 | -0.12 |
| Mar | 1.60 | 1.74 | -0.14 |
| Apr | 2.89 | 3.14 | -0.25 |
| May | 4.15 | 4.23 | -0.08 |
| Jun | 4.56 | 4.77 | -0.21 |
| Jul | 4.22 | 4.45 | -0.23 |
| Aug | 4.55 | 4.39 | 0.16 |
| Sep | 3.33 | 3.31 | 0.02 |
| Oct | 2.76 | 2.91 | -0.15 |
| Nov | 1.57 | 1.72 | -0.15 |
| Dec | 1.10 | 1.31 | -0.21 |
32.27 | 33.83 | -1.56 |