| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.84 | 1.88 | -0.04 |
| Feb | 1.77 | 1.89 | -0.12 |
| Mar | 2.25 | 2.31 | -0.06 |
| Apr | 3.83 | 3.73 | 0.10 |
| May | 4.26 | 4.54 | -0.28 |
| Jun | 4.55 | 4.40 | 0.15 |
| Jul | 3.85 | 3.75 | 0.10 |
| Aug | 3.86 | 3.77 | 0.09 |
| Sep | 3.43 | 3.41 | 0.02 |
| Oct | 3.19 | 3.20 | -0.01 |
| Nov | 2.47 | 2.40 | 0.07 |
| Dec | 2.06 | 2.07 | -0.01 |
37.36 | 37.35 | 0.01 |