| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.34 | 0.01 |
| Feb | 0.47 | 0.46 | 0.01 |
| Mar | 0.84 | 0.85 | -0.01 |
| Apr | 1.74 | 1.71 | 0.03 |
| May | 2.69 | 2.68 | 0.01 |
| Jun | 2.75 | 2.92 | -0.17 |
| Jul | 3.06 | 3.00 | 0.06 |
| Aug | 2.89 | 2.87 | 0.02 |
| Sep | 1.44 | 1.46 | -0.02 |
| Oct | 1.40 | 1.39 | 0.01 |
| Nov | 0.54 | 0.57 | -0.03 |
| Dec | 0.43 | 0.43 | 0.00 |
18.60 | 18.68 | -0.08 |