| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.55 | -0.03 |
| Feb | 3.57 | 3.46 | 0.11 |
| Mar | 4.53 | 4.52 | 0.01 |
| Apr | 4.70 | 4.44 | 0.26 |
| May | 5.33 | 5.27 | 0.06 |
| Jun | 4.89 | 4.88 | 0.01 |
| Jul | 4.96 | 4.88 | 0.08 |
| Aug | 3.63 | 3.58 | 0.05 |
| Sep | 3.62 | 3.56 | 0.06 |
| Oct | 3.71 | 3.49 | 0.22 |
| Nov | 3.34 | 3.32 | 0.02 |
| Dec | 4.10 | 4.11 | -0.01 |
49.90 | 49.06 | 0.84 |