| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.86 | 3.94 | -0.08 |
| Feb | 3.54 | 3.58 | -0.04 |
| Mar | 4.09 | 4.06 | 0.03 |
| Apr | 3.12 | 3.15 | -0.03 |
| May | 3.23 | 3.15 | 0.08 |
| Jun | 4.35 | 4.38 | -0.03 |
| Jul | 3.99 | 4.08 | -0.09 |
| Aug | 4.18 | 4.51 | -0.33 |
| Sep | 3.74 | 3.96 | -0.22 |
| Oct | 3.22 | 3.33 | -0.11 |
| Nov | 3.26 | 3.34 | -0.08 |
| Dec | 4.05 | 4.07 | -0.02 |
44.63 | 45.55 | -0.92 |