| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.67 | -0.08 |
| Feb | 0.52 | 0.52 | 0.00 |
| Mar | 1.38 | 1.40 | -0.02 |
| Apr | 1.88 | 1.79 | 0.09 |
| May | 2.78 | 2.70 | 0.08 |
| Jun | 3.38 | 3.31 | 0.07 |
| Jul | 2.99 | 2.99 | 0.00 |
| Aug | 2.84 | 2.74 | 0.10 |
| Sep | 1.50 | 1.44 | 0.06 |
| Oct | 1.83 | 2.01 | -0.18 |
| Nov | 0.72 | 0.70 | 0.02 |
| Dec | 0.94 | 0.93 | 0.01 |
21.35 | 21.20 | 0.15 |