| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.74 | 1.82 | -0.08 |
| Feb | 1.81 | 1.76 | 0.05 |
| Mar | 1.95 | 1.79 | 0.16 |
| Apr | 2.24 | 1.97 | 0.27 |
| May | 1.90 | 1.94 | -0.04 |
| Jun | 1.01 | 1.02 | -0.01 |
| Jul | 1.48 | 1.45 | 0.03 |
| Aug | 1.55 | 1.53 | 0.02 |
| Sep | 1.99 | 2.07 | -0.08 |
| Oct | 1.98 | 2.04 | -0.06 |
| Nov | 1.71 | 1.59 | 0.12 |
| Dec | 1.73 | 1.76 | -0.03 |
21.09 | 20.74 | 0.35 |