| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.45 | 0.06 |
| Feb | 3.23 | 3.21 | 0.02 |
| Mar | 3.48 | 3.60 | -0.12 |
| Apr | 3.19 | 3.44 | -0.25 |
| May | 3.50 | 3.60 | -0.10 |
| Jun | 5.98 | 6.22 | -0.24 |
| Jul | 5.68 | 5.70 | -0.02 |
| Aug | 5.80 | 5.88 | -0.08 |
| Sep | 4.55 | 4.59 | -0.04 |
| Oct | 3.42 | 3.84 | -0.42 |
| Nov | 2.31 | 2.59 | -0.28 |
| Dec | 3.14 | 3.40 | -0.26 |
47.79 | 49.52 | -1.73 |