| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 2.57 | 0.02 |
| Feb | 2.10 | 2.14 | -0.04 |
| Mar | 2.71 | 2.61 | 0.10 |
| Apr | 3.82 | 3.69 | 0.13 |
| May | 4.27 | 4.19 | 0.08 |
| Jun | 4.67 | 4.57 | 0.10 |
| Jul | 4.61 | 4.52 | 0.09 |
| Aug | 4.12 | 4.05 | 0.07 |
| Sep | 3.23 | 3.20 | 0.03 |
| Oct | 3.16 | 3.11 | 0.05 |
| Nov | 3.03 | 2.92 | 0.11 |
| Dec | 2.44 | 2.39 | 0.05 |
40.75 | 39.96 | 0.79 |