| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.37 | 1.46 | -0.09 |
| Feb | 1.07 | 1.20 | -0.13 |
| Mar | 1.65 | 1.80 | -0.15 |
| Apr | 2.69 | 2.89 | -0.20 |
| May | 3.25 | 3.44 | -0.19 |
| Jun | 3.41 | 3.42 | -0.01 |
| Jul | 3.44 | 3.52 | -0.08 |
| Aug | 2.84 | 2.73 | 0.11 |
| Sep | 3.39 | 3.47 | -0.08 |
| Oct | 3.22 | 3.16 | 0.06 |
| Nov | 2.18 | 2.20 | -0.02 |
| Dec | 1.67 | 1.70 | -0.03 |
30.18 | 30.99 | -0.81 |