| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.08 | 2.07 | 0.01 |
| Feb | 1.76 | 1.82 | -0.06 |
| Mar | 2.31 | 2.28 | 0.03 |
| Apr | 3.69 | 3.56 | 0.13 |
| May | 4.65 | 4.56 | 0.09 |
| Jun | 4.37 | 4.50 | -0.13 |
| Jul | 4.06 | 4.04 | 0.02 |
| Aug | 3.79 | 3.67 | 0.12 |
| Sep | 3.30 | 3.26 | 0.04 |
| Oct | 3.10 | 3.09 | 0.01 |
| Nov | 2.49 | 2.45 | 0.04 |
| Dec | 2.03 | 2.05 | -0.02 |
37.63 | 37.35 | 0.28 |