| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.80 | -0.43 |
| Feb | 2.68 | 2.87 | -0.19 |
| Mar | 3.84 | 4.06 | -0.22 |
| Apr | 3.74 | 3.94 | -0.20 |
| May | 3.73 | 3.75 | -0.02 |
| Jun | 4.29 | 4.56 | -0.27 |
| Jul | 4.37 | 4.45 | -0.08 |
| Aug | 4.42 | 4.77 | -0.35 |
| Sep | 4.28 | 4.82 | -0.54 |
| Oct | 4.52 | 5.00 | -0.48 |
| Nov | 3.69 | 4.03 | -0.34 |
| Dec | 4.05 | 4.38 | -0.33 |
46.98 | 50.43 | -3.45 |