| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.19 | 0.19 | 0.00 |
| Feb | 0.24 | 0.26 | -0.02 |
| Mar | 0.62 | 0.66 | -0.04 |
| Apr | 1.15 | 1.22 | -0.07 |
| May | 1.73 | 1.79 | -0.06 |
| Jun | 1.63 | 1.64 | -0.01 |
| Jul | 2.66 | 2.51 | 0.15 |
| Aug | 2.54 | 2.35 | 0.19 |
| Sep | 0.90 | 0.89 | 0.01 |
| Oct | 0.84 | 0.88 | -0.04 |
| Nov | 0.34 | 0.32 | 0.02 |
| Dec | 0.21 | 0.22 | -0.01 |
13.05 | 12.93 | 0.12 |