| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.91 | 3.10 | -0.19 |
| Feb | 2.38 | 2.49 | -0.11 |
| Mar | 3.18 | 3.15 | 0.03 |
| Apr | 3.46 | 3.52 | -0.06 |
| May | 3.83 | 3.87 | -0.04 |
| Jun | 4.23 | 4.23 | 0.00 |
| Jul | 4.13 | 4.08 | 0.05 |
| Aug | 3.59 | 3.43 | 0.16 |
| Sep | 3.59 | 3.54 | 0.05 |
| Oct | 2.94 | 2.96 | -0.02 |
| Nov | 2.81 | 2.93 | -0.12 |
| Dec | 3.02 | 3.08 | -0.06 |
40.07 | 40.38 | -0.31 |