| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.43 | 2.39 | 0.04 |
| Feb | 1.96 | 2.05 | -0.09 |
| Mar | 2.37 | 2.48 | -0.11 |
| Apr | 3.68 | 3.67 | 0.01 |
| May | 4.48 | 4.38 | 0.10 |
| Jun | 3.77 | 3.91 | -0.14 |
| Jul | 3.56 | 3.54 | 0.02 |
| Aug | 3.64 | 3.75 | -0.11 |
| Sep | 3.08 | 3.07 | 0.01 |
| Oct | 2.89 | 2.85 | 0.04 |
| Nov | 2.99 | 2.94 | 0.05 |
| Dec | 2.40 | 2.36 | 0.04 |
37.25 | 37.39 | -0.14 |