| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.36 | 0.04 |
| Feb | 0.51 | 0.37 | 0.14 |
| Mar | 0.91 | 0.87 | 0.04 |
| Apr | 1.63 | 1.61 | 0.02 |
| May | 2.38 | 2.50 | -0.12 |
| Jun | 2.31 | 2.09 | 0.22 |
| Jul | 2.23 | 2.15 | 0.08 |
| Aug | 1.97 | 1.92 | 0.05 |
| Sep | 1.30 | 1.10 | 0.20 |
| Oct | 1.15 | 1.05 | 0.10 |
| Nov | 0.62 | 0.55 | 0.07 |
| Dec | 0.38 | 0.41 | -0.03 |
15.79 | 14.98 | 0.81 |