| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.43 | -0.01 |
| Feb | 0.57 | 0.58 | -0.01 |
| Mar | 0.80 | 0.84 | -0.04 |
| Apr | 1.67 | 1.77 | -0.10 |
| May | 3.02 | 3.06 | -0.04 |
| Jun | 3.43 | 3.56 | -0.13 |
| Jul | 2.84 | 2.96 | -0.12 |
| Aug | 2.25 | 2.32 | -0.07 |
| Sep | 1.83 | 1.88 | -0.05 |
| Oct | 1.80 | 1.76 | 0.04 |
| Nov | 0.54 | 0.58 | -0.04 |
| Dec | 0.48 | 0.50 | -0.02 |
19.65 | 20.24 | -0.59 |