| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.46 | -0.42 |
| Feb | 4.70 | 4.81 | -0.11 |
| Mar | 2.63 | 3.15 | -0.52 |
| Apr | 1.00 | 1.11 | -0.11 |
| May | 0.41 | 0.59 | -0.18 |
| Jun | 0.10 | 0.22 | -0.12 |
| Jul | 0.02 | 0.07 | -0.05 |
| Aug | 0.01 | 0.01 | 0.00 |
| Sep | 0.14 | 0.17 | -0.03 |
| Oct | 0.71 | 0.77 | -0.06 |
| Nov | 1.17 | 1.11 | 0.06 |
| Dec | 2.83 | 2.89 | -0.06 |
17.76 | 19.36 | -1.60 |