| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.95 | -0.27 |
| Feb | 3.24 | 3.55 | -0.31 |
| Mar | 4.20 | 4.58 | -0.38 |
| Apr | 4.29 | 4.68 | -0.39 |
| May | 3.76 | 3.97 | -0.21 |
| Jun | 4.42 | 4.49 | -0.07 |
| Jul | 4.15 | 3.99 | 0.16 |
| Aug | 4.07 | 4.26 | -0.19 |
| Sep | 4.55 | 4.42 | 0.13 |
| Oct | 4.85 | 5.11 | -0.26 |
| Nov | 4.03 | 4.12 | -0.09 |
| Dec | 4.34 | 4.78 | -0.44 |
49.58 | 51.90 | -2.32 |