| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.39 | -0.01 |
| Feb | 0.49 | 0.52 | -0.03 |
| Mar | 0.87 | 0.91 | -0.04 |
| Apr | 1.83 | 1.97 | -0.14 |
| May | 2.80 | 2.80 | 0.00 |
| Jun | 2.81 | 2.86 | -0.05 |
| Jul | 3.09 | 3.09 | 0.00 |
| Aug | 2.61 | 2.55 | 0.06 |
| Sep | 1.29 | 1.37 | -0.08 |
| Oct | 1.33 | 1.43 | -0.10 |
| Nov | 0.53 | 0.56 | -0.03 |
| Dec | 0.43 | 0.45 | -0.02 |
18.46 | 18.90 | -0.44 |