| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.54 | -0.03 |
| Feb | 0.69 | 0.73 | -0.04 |
| Mar | 1.32 | 1.39 | -0.07 |
| Apr | 1.86 | 1.86 | 0.00 |
| May | 3.26 | 3.32 | -0.06 |
| Jun | 3.08 | 3.18 | -0.10 |
| Jul | 3.39 | 3.60 | -0.21 |
| Aug | 2.93 | 2.93 | 0.00 |
| Sep | 1.77 | 1.74 | 0.03 |
| Oct | 1.63 | 1.68 | -0.05 |
| Nov | 0.72 | 0.75 | -0.03 |
| Dec | 0.74 | 0.84 | -0.10 |
21.90 | 22.56 | -0.66 |