| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.08 | 4.11 | -0.03 |
| Feb | 4.62 | 4.58 | 0.04 |
| Mar | 4.74 | 4.83 | -0.09 |
| Apr | 4.89 | 4.96 | -0.07 |
| May | 4.97 | 5.21 | -0.24 |
| Jun | 4.23 | 4.33 | -0.10 |
| Jul | 4.40 | 4.58 | -0.18 |
| Aug | 3.82 | 3.88 | -0.06 |
| Sep | 3.75 | 3.85 | -0.10 |
| Oct | 3.54 | 3.57 | -0.03 |
| Nov | 3.65 | 3.69 | -0.04 |
| Dec | 4.71 | 4.76 | -0.05 |
51.40 | 52.35 | -0.95 |