| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.94 | -0.19 |
| Feb | 3.25 | 3.34 | -0.09 |
| Mar | 4.29 | 4.47 | -0.18 |
| Apr | 3.96 | 3.88 | 0.08 |
| May | 3.46 | 3.63 | -0.17 |
| Jun | 4.09 | 4.15 | -0.06 |
| Jul | 3.85 | 3.88 | -0.03 |
| Aug | 4.24 | 4.54 | -0.30 |
| Sep | 3.71 | 3.66 | 0.05 |
| Oct | 3.27 | 3.19 | 0.08 |
| Nov | 3.51 | 3.44 | 0.07 |
| Dec | 4.04 | 4.18 | -0.14 |
45.42 | 46.30 | -0.88 |