| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.60 | -0.20 |
| Feb | 3.41 | 3.45 | -0.04 |
| Mar | 4.54 | 4.49 | 0.05 |
| Apr | 4.79 | 4.87 | -0.08 |
| May | 5.41 | 5.32 | 0.09 |
| Jun | 4.90 | 4.77 | 0.13 |
| Jul | 5.03 | 4.69 | 0.34 |
| Aug | 3.53 | 3.39 | 0.14 |
| Sep | 3.18 | 3.62 | -0.44 |
| Oct | 3.69 | 3.39 | 0.30 |
| Nov | 3.31 | 3.41 | -0.10 |
| Dec | 4.14 | 4.15 | -0.01 |
49.33 | 49.15 | 0.18 |