| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.69 | 4.65 | 0.04 |
| Feb | 4.69 | 4.77 | -0.08 |
| Mar | 4.89 | 4.85 | 0.04 |
| Apr | 3.97 | 3.99 | -0.02 |
| May | 3.77 | 3.87 | -0.10 |
| Jun | 4.45 | 4.48 | -0.03 |
| Jul | 4.86 | 4.76 | 0.10 |
| Aug | 4.34 | 4.63 | -0.29 |
| Sep | 4.09 | 4.27 | -0.18 |
| Oct | 3.47 | 3.52 | -0.05 |
| Nov | 4.01 | 4.25 | -0.24 |
| Dec | 4.59 | 4.69 | -0.10 |
51.82 | 52.73 | -0.91 |