| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.66 | -0.09 |
| Feb | 3.06 | 2.98 | 0.08 |
| Mar | 4.15 | 4.19 | -0.04 |
| Apr | 3.69 | 3.65 | 0.04 |
| May | 3.71 | 3.63 | 0.08 |
| Jun | 4.31 | 4.20 | 0.11 |
| Jul | 4.72 | 4.57 | 0.15 |
| Aug | 4.47 | 4.37 | 0.10 |
| Sep | 4.96 | 5.07 | -0.11 |
| Oct | 3.43 | 3.47 | -0.04 |
| Nov | 3.34 | 3.33 | 0.01 |
| Dec | 3.57 | 3.55 | 0.02 |
46.98 | 46.67 | 0.31 |