| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.45 | -0.02 |
| Feb | 0.45 | 0.44 | 0.01 |
| Mar | 0.68 | 0.72 | -0.04 |
| Apr | 1.19 | 1.08 | 0.11 |
| May | 2.81 | 2.79 | 0.02 |
| Jun | 3.34 | 3.41 | -0.07 |
| Jul | 3.43 | 3.72 | -0.29 |
| Aug | 2.40 | 2.46 | -0.06 |
| Sep | 2.06 | 2.12 | -0.06 |
| Oct | 1.55 | 1.65 | -0.10 |
| Nov | 0.57 | 0.60 | -0.03 |
| Dec | 0.59 | 0.65 | -0.06 |
19.50 | 20.09 | -0.59 |