| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.85 | -0.14 |
| Feb | 4.11 | 4.29 | -0.18 |
| Mar | 4.61 | 4.98 | -0.37 |
| Apr | 5.15 | 5.38 | -0.23 |
| May | 5.26 | 5.38 | -0.12 |
| Jun | 4.08 | 4.14 | -0.06 |
| Jul | 3.87 | 3.90 | -0.03 |
| Aug | 3.07 | 2.93 | 0.14 |
| Sep | 3.08 | 3.27 | -0.19 |
| Oct | 3.88 | 4.19 | -0.31 |
| Nov | 4.25 | 4.38 | -0.13 |
| Dec | 4.72 | 4.80 | -0.08 |
49.79 | 51.49 | -1.70 |