| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.57 | -0.03 |
| Feb | 3.02 | 2.96 | 0.06 |
| Mar | 4.06 | 4.08 | -0.02 |
| Apr | 3.68 | 3.65 | 0.03 |
| May | 3.68 | 3.59 | 0.09 |
| Jun | 4.32 | 4.30 | 0.02 |
| Jul | 4.82 | 4.66 | 0.16 |
| Aug | 4.57 | 4.55 | 0.02 |
| Sep | 4.82 | 5.11 | -0.29 |
| Oct | 3.43 | 3.50 | -0.07 |
| Nov | 3.34 | 3.33 | 0.01 |
| Dec | 3.54 | 3.48 | 0.06 |
46.82 | 46.78 | 0.04 |