| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.38 | -0.01 |
| Feb | 0.50 | 0.54 | -0.04 |
| Mar | 1.01 | 1.00 | 0.01 |
| Apr | 2.13 | 2.12 | 0.01 |
| May | 2.97 | 3.03 | -0.06 |
| Jun | 3.19 | 3.11 | 0.08 |
| Jul | 3.39 | 3.34 | 0.05 |
| Aug | 3.01 | 2.94 | 0.07 |
| Sep | 1.57 | 1.55 | 0.02 |
| Oct | 1.52 | 1.53 | -0.01 |
| Nov | 0.73 | 0.68 | 0.05 |
| Dec | 0.55 | 0.54 | 0.01 |
20.94 | 20.76 | 0.18 |