| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.85 | 0.78 | 0.07 |
| Feb | 0.84 | 0.88 | -0.04 |
| Mar | 1.96 | 1.97 | -0.01 |
| Apr | 2.77 | 2.65 | 0.12 |
| May | 2.52 | 2.42 | 0.10 |
| Jun | 1.99 | 1.75 | 0.24 |
| Jul | 3.08 | 2.70 | 0.38 |
| Aug | 2.69 | 2.92 | -0.23 |
| Sep | 1.74 | 1.61 | 0.13 |
| Oct | 1.28 | 1.23 | 0.05 |
| Nov | 1.10 | 1.02 | 0.08 |
| Dec | 1.00 | 0.74 | 0.26 |
21.82 | 20.67 | 1.15 |