| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.41 | -0.03 |
| Feb | 0.37 | 0.36 | 0.01 |
| Mar | 1.02 | 1.12 | -0.10 |
| Apr | 1.50 | 1.40 | 0.10 |
| May | 2.08 | 1.96 | 0.12 |
| Jun | 2.73 | 2.61 | 0.12 |
| Jul | 2.85 | 2.75 | 0.10 |
| Aug | 2.89 | 2.93 | -0.04 |
| Sep | 1.24 | 1.39 | -0.15 |
| Oct | 1.56 | 1.63 | -0.07 |
| Nov | 0.49 | 0.51 | -0.02 |
| Dec | 0.58 | 0.69 | -0.11 |
17.69 | 17.76 | -0.07 |