| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.63 | 0.00 |
| Feb | 0.69 | 0.65 | 0.04 |
| Mar | 1.51 | 1.46 | 0.05 |
| Apr | 1.96 | 1.99 | -0.03 |
| May | 3.26 | 3.29 | -0.03 |
| Jun | 3.63 | 3.56 | 0.07 |
| Jul | 3.38 | 3.36 | 0.02 |
| Aug | 3.10 | 3.14 | -0.04 |
| Sep | 1.70 | 1.64 | 0.06 |
| Oct | 2.08 | 2.04 | 0.04 |
| Nov | 0.89 | 0.84 | 0.05 |
| Dec | 0.95 | 0.92 | 0.03 |
23.78 | 23.52 | 0.26 |