| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.33 | 0.04 |
| Feb | 0.54 | 0.50 | 0.04 |
| Mar | 0.99 | 0.91 | 0.08 |
| Apr | 2.11 | 2.01 | 0.10 |
| May | 3.31 | 3.41 | -0.10 |
| Jun | 3.09 | 3.04 | 0.05 |
| Jul | 2.63 | 2.35 | 0.28 |
| Aug | 1.74 | 1.89 | -0.15 |
| Sep | 1.30 | 1.33 | -0.03 |
| Oct | 1.37 | 1.47 | -0.10 |
| Nov | 0.46 | 0.48 | -0.02 |
| Dec | 0.37 | 0.40 | -0.03 |
18.28 | 18.12 | 0.16 |