| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.66 | -0.03 |
| Feb | 0.79 | 0.86 | -0.07 |
| Mar | 1.62 | 1.63 | -0.01 |
| Apr | 2.48 | 2.70 | -0.22 |
| May | 2.54 | 2.64 | -0.10 |
| Jun | 1.81 | 1.91 | -0.10 |
| Jul | 1.91 | 1.86 | 0.05 |
| Aug | 1.90 | 1.77 | 0.13 |
| Sep | 1.42 | 1.55 | -0.13 |
| Oct | 1.19 | 1.37 | -0.18 |
| Nov | 0.90 | 0.98 | -0.08 |
| Dec | 0.65 | 0.72 | -0.07 |
17.84 | 18.65 | -0.81 |