| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.37 | -0.02 |
| Feb | 4.45 | 4.56 | -0.11 |
| Mar | 4.99 | 4.93 | 0.06 |
| Apr | 4.58 | 4.66 | -0.08 |
| May | 4.51 | 4.34 | 0.17 |
| Jun | 4.62 | 4.17 | 0.45 |
| Jul | 4.85 | 5.27 | -0.42 |
| Aug | 3.86 | 3.73 | 0.13 |
| Sep | 3.34 | 3.33 | 0.01 |
| Oct | 2.97 | 2.82 | 0.15 |
| Nov | 3.47 | 3.37 | 0.10 |
| Dec | 5.02 | 4.87 | 0.15 |
51.01 | 50.42 | 0.59 |