| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.51 | 1.62 | -0.11 |
| Feb | 1.46 | 1.54 | -0.08 |
| Mar | 1.43 | 1.57 | -0.14 |
| Apr | 1.29 | 1.24 | 0.05 |
| May | 1.45 | 1.29 | 0.16 |
| Jun | 0.72 | 0.78 | -0.06 |
| Jul | 2.10 | 1.95 | 0.15 |
| Aug | 2.46 | 2.50 | -0.04 |
| Sep | 1.98 | 1.82 | 0.16 |
| Oct | 1.49 | 1.56 | -0.07 |
| Nov | 1.32 | 1.38 | -0.06 |
| Dec | 1.50 | 1.64 | -0.14 |
18.71 | 18.89 | -0.18 |