| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.11 | 4.53 | -0.42 |
| Feb | 3.83 | 4.52 | -0.69 |
| Mar | 3.07 | 3.25 | -0.18 |
| Apr | 1.40 | 1.60 | -0.20 |
| May | 0.63 | 0.78 | -0.15 |
| Jun | 0.12 | 0.17 | -0.05 |
| Jul | 0.00 | 0.01 | -0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.07 | 0.01 |
| Oct | 0.95 | 0.97 | -0.02 |
| Nov | 1.98 | 2.17 | -0.19 |
| Dec | 4.07 | 4.53 | -0.46 |
20.26 | 22.63 | -2.37 |