| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.31 | 3.62 | -0.31 |
| Feb | 2.73 | 3.01 | -0.28 |
| Mar | 3.04 | 3.30 | -0.26 |
| Apr | 3.48 | 3.55 | -0.07 |
| May | 3.55 | 3.59 | -0.04 |
| Jun | 3.88 | 3.85 | 0.03 |
| Jul | 3.83 | 3.89 | -0.06 |
| Aug | 3.59 | 3.78 | -0.19 |
| Sep | 3.65 | 3.64 | 0.01 |
| Oct | 4.38 | 4.48 | -0.10 |
| Nov | 3.73 | 3.91 | -0.18 |
| Dec | 3.65 | 3.94 | -0.29 |
42.82 | 44.56 | -1.74 |