| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.51 | -0.07 |
| Feb | 3.48 | 3.49 | -0.01 |
| Mar | 4.54 | 4.61 | -0.07 |
| Apr | 4.57 | 4.59 | -0.02 |
| May | 5.23 | 5.27 | -0.04 |
| Jun | 4.89 | 4.84 | 0.05 |
| Jul | 4.97 | 4.80 | 0.17 |
| Aug | 3.60 | 3.46 | 0.14 |
| Sep | 3.63 | 3.52 | 0.11 |
| Oct | 3.60 | 3.46 | 0.14 |
| Nov | 3.26 | 3.35 | -0.09 |
| Dec | 3.98 | 4.12 | -0.14 |
49.19 | 49.02 | 0.17 |