| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.84 | 0.01 |
| Feb | 3.39 | 3.38 | 0.01 |
| Mar | 4.49 | 4.50 | -0.01 |
| Apr | 4.39 | 4.32 | 0.07 |
| May | 3.55 | 3.46 | 0.09 |
| Jun | 4.35 | 4.29 | 0.06 |
| Jul | 3.64 | 3.69 | -0.05 |
| Aug | 3.98 | 3.96 | 0.02 |
| Sep | 3.93 | 3.84 | 0.09 |
| Oct | 5.02 | 4.85 | 0.17 |
| Nov | 3.97 | 3.86 | 0.11 |
| Dec | 4.67 | 4.83 | -0.16 |
49.23 | 48.82 | 0.41 |