| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.31 | 1.30 | 0.01 |
| Feb | 1.57 | 1.54 | 0.03 |
| Mar | 2.19 | 2.09 | 0.10 |
| Apr | 3.68 | 3.70 | -0.02 |
| May | 4.25 | 4.21 | 0.04 |
| Jun | 5.42 | 5.40 | 0.02 |
| Jul | 4.56 | 4.43 | 0.13 |
| Aug | 3.96 | 3.86 | 0.10 |
| Sep | 3.54 | 3.56 | -0.02 |
| Oct | 2.93 | 2.97 | -0.04 |
| Nov | 2.24 | 2.26 | -0.02 |
| Dec | 1.81 | 1.77 | 0.04 |
37.46 | 37.09 | 0.37 |