| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.51 | -0.13 |
| Feb | 3.03 | 3.00 | 0.03 |
| Mar | 3.47 | 3.62 | -0.15 |
| Apr | 3.35 | 3.39 | -0.04 |
| May | 3.48 | 3.48 | 0.00 |
| Jun | 4.86 | 4.70 | 0.16 |
| Jul | 5.38 | 5.18 | 0.20 |
| Aug | 4.87 | 5.17 | -0.30 |
| Sep | 5.34 | 5.37 | -0.03 |
| Oct | 3.28 | 3.31 | -0.03 |
| Nov | 3.29 | 3.33 | -0.04 |
| Dec | 3.43 | 3.47 | -0.04 |
47.16 | 47.53 | -0.37 |