| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.69 | 2.52 | 0.17 |
| Feb | 2.26 | 2.15 | 0.11 |
| Mar | 3.35 | 3.06 | 0.29 |
| Apr | 3.26 | 3.18 | 0.08 |
| May | 4.18 | 3.84 | 0.34 |
| Jun | 4.30 | 3.96 | 0.34 |
| Jul | 4.24 | 3.93 | 0.31 |
| Aug | 3.73 | 3.67 | 0.06 |
| Sep | 4.02 | 3.69 | 0.33 |
| Oct | 2.79 | 2.41 | 0.38 |
| Nov | 2.60 | 2.42 | 0.18 |
| Dec | 2.91 | 2.83 | 0.08 |
40.33 | 37.66 | 2.67 |