| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 4.19 | -0.27 |
| Feb | 3.49 | 3.65 | -0.16 |
| Mar | 4.91 | 5.28 | -0.37 |
| Apr | 4.35 | 4.59 | -0.24 |
| May | 3.43 | 3.51 | -0.08 |
| Jun | 3.82 | 3.99 | -0.17 |
| Jul | 3.24 | 3.31 | -0.07 |
| Aug | 3.57 | 3.74 | -0.17 |
| Sep | 3.98 | 3.91 | 0.07 |
| Oct | 4.45 | 4.80 | -0.35 |
| Nov | 4.15 | 4.32 | -0.17 |
| Dec | 4.70 | 5.05 | -0.35 |
48.01 | 50.34 | -2.33 |