| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.35 | 0.00 |
| Feb | 0.54 | 0.50 | 0.04 |
| Mar | 1.07 | 0.98 | 0.09 |
| Apr | 2.10 | 2.08 | 0.02 |
| May | 3.95 | 3.68 | 0.27 |
| Jun | 3.21 | 3.02 | 0.19 |
| Jul | 2.44 | 2.21 | 0.23 |
| Aug | 1.66 | 1.71 | -0.05 |
| Sep | 1.40 | 1.32 | 0.08 |
| Oct | 1.51 | 1.55 | -0.04 |
| Nov | 0.56 | 0.54 | 0.02 |
| Dec | 0.40 | 0.40 | 0.00 |
19.19 | 18.34 | 0.85 |