| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.41 | 0.06 |
| Feb | 0.41 | 0.34 | 0.07 |
| Mar | 0.57 | 0.44 | 0.13 |
| Apr | 1.17 | 1.17 | 0.00 |
| May | 1.90 | 1.62 | 0.28 |
| Jun | 3.12 | 2.75 | 0.37 |
| Jul | 1.16 | 1.26 | -0.10 |
| Aug | 1.23 | 1.20 | 0.03 |
| Sep | 1.27 | 1.26 | 0.01 |
| Oct | 0.84 | 0.79 | 0.05 |
| Nov | 0.55 | 0.51 | 0.04 |
| Dec | 0.40 | 0.27 | 0.13 |
13.09 | 12.02 | 1.07 |