| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.46 | 1.54 | -0.08 |
| Feb | 1.48 | 1.61 | -0.13 |
| Mar | 2.11 | 2.15 | -0.04 |
| Apr | 3.68 | 3.77 | -0.09 |
| May | 4.16 | 4.33 | -0.17 |
| Jun | 5.51 | 5.35 | 0.16 |
| Jul | 4.33 | 4.22 | 0.11 |
| Aug | 4.01 | 4.10 | -0.09 |
| Sep | 3.57 | 3.44 | 0.13 |
| Oct | 2.92 | 2.85 | 0.07 |
| Nov | 2.26 | 2.23 | 0.03 |
| Dec | 1.62 | 1.76 | -0.14 |
37.11 | 37.35 | -0.24 |