| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.12 | -0.14 |
| Feb | 3.59 | 3.85 | -0.26 |
| Mar | 4.31 | 4.50 | -0.19 |
| Apr | 4.15 | 4.70 | -0.55 |
| May | 4.12 | 4.49 | -0.37 |
| Jun | 4.82 | 5.60 | -0.78 |
| Jul | 5.03 | 5.53 | -0.50 |
| Aug | 4.55 | 5.05 | -0.50 |
| Sep | 3.89 | 4.20 | -0.31 |
| Oct | 3.27 | 3.06 | 0.21 |
| Nov | 3.48 | 3.37 | 0.11 |
| Dec | 4.24 | 4.42 | -0.18 |
49.43 | 52.89 | -3.46 |