| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.59 | -0.24 |
| Feb | 2.83 | 2.88 | -0.05 |
| Mar | 3.92 | 3.83 | 0.09 |
| Apr | 3.38 | 3.55 | -0.17 |
| May | 3.70 | 3.79 | -0.09 |
| Jun | 4.18 | 4.31 | -0.13 |
| Jul | 5.26 | 5.00 | 0.26 |
| Aug | 5.00 | 5.61 | -0.61 |
| Sep | 5.00 | 4.96 | 0.04 |
| Oct | 3.86 | 4.42 | -0.56 |
| Nov | 3.10 | 3.32 | -0.22 |
| Dec | 3.33 | 3.54 | -0.21 |
46.91 | 48.80 | -1.89 |