| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.63 | -0.08 |
| Feb | 0.48 | 0.50 | -0.02 |
| Mar | 1.15 | 1.23 | -0.08 |
| Apr | 1.60 | 1.82 | -0.22 |
| May | 2.32 | 2.53 | -0.21 |
| Jun | 2.83 | 2.80 | 0.03 |
| Jul | 2.49 | 2.51 | -0.02 |
| Aug | 2.85 | 3.14 | -0.29 |
| Sep | 1.61 | 1.70 | -0.09 |
| Oct | 1.77 | 1.81 | -0.04 |
| Nov | 0.70 | 0.77 | -0.07 |
| Dec | 0.71 | 0.73 | -0.02 |
19.06 | 20.17 | -1.11 |