| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.98 | -0.22 |
| Feb | 0.77 | 0.95 | -0.18 |
| Mar | 1.61 | 1.75 | -0.14 |
| Apr | 2.91 | 3.10 | -0.19 |
| May | 4.15 | 4.17 | -0.02 |
| Jun | 4.59 | 4.79 | -0.20 |
| Jul | 4.19 | 4.29 | -0.10 |
| Aug | 4.54 | 4.40 | 0.14 |
| Sep | 3.31 | 3.25 | 0.06 |
| Oct | 2.71 | 2.83 | -0.12 |
| Nov | 1.56 | 1.73 | -0.17 |
| Dec | 1.10 | 1.33 | -0.23 |
32.20 | 33.57 | -1.37 |