| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.42 | -0.05 |
| Feb | 0.38 | 0.42 | -0.04 |
| Mar | 0.65 | 0.70 | -0.05 |
| Apr | 1.02 | 1.02 | 0.00 |
| May | 2.60 | 2.70 | -0.10 |
| Jun | 3.74 | 3.86 | -0.12 |
| Jul | 3.19 | 3.15 | 0.04 |
| Aug | 2.35 | 2.33 | 0.02 |
| Sep | 1.89 | 1.84 | 0.05 |
| Oct | 1.40 | 1.47 | -0.07 |
| Nov | 0.60 | 0.73 | -0.13 |
| Dec | 0.51 | 0.60 | -0.09 |
18.70 | 19.24 | -0.54 |