| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.77 | -0.07 |
| Feb | 0.88 | 1.00 | -0.12 |
| Mar | 1.17 | 1.28 | -0.11 |
| Apr | 2.46 | 2.52 | -0.06 |
| May | 3.79 | 3.44 | 0.35 |
| Jun | 3.20 | 3.20 | 0.00 |
| Jul | 2.43 | 2.44 | -0.01 |
| Aug | 1.63 | 1.88 | -0.25 |
| Sep | 1.54 | 1.47 | 0.07 |
| Oct | 1.98 | 1.99 | -0.01 |
| Nov | 0.87 | 0.93 | -0.06 |
| Dec | 0.77 | 0.93 | -0.16 |
21.42 | 21.85 | -0.43 |