| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 3.26 | -0.17 |
| Feb | 2.74 | 2.85 | -0.11 |
| Mar | 4.05 | 4.20 | -0.15 |
| Apr | 3.36 | 3.50 | -0.14 |
| May | 3.68 | 4.04 | -0.36 |
| Jun | 4.09 | 4.27 | -0.18 |
| Jul | 4.26 | 4.46 | -0.20 |
| Aug | 4.33 | 4.59 | -0.26 |
| Sep | 4.37 | 4.44 | -0.07 |
| Oct | 3.71 | 4.16 | -0.45 |
| Nov | 3.09 | 3.18 | -0.09 |
| Dec | 3.63 | 3.88 | -0.25 |
44.40 | 46.83 | -2.43 |