| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.44 | -0.29 |
| Feb | 3.67 | 3.88 | -0.21 |
| Mar | 4.11 | 4.45 | -0.34 |
| Apr | 3.16 | 3.37 | -0.21 |
| May | 3.36 | 3.41 | -0.05 |
| Jun | 4.90 | 5.28 | -0.38 |
| Jul | 4.96 | 5.06 | -0.10 |
| Aug | 4.84 | 5.11 | -0.27 |
| Sep | 3.95 | 4.22 | -0.27 |
| Oct | 2.75 | 2.90 | -0.15 |
| Nov | 2.98 | 3.18 | -0.20 |
| Dec | 4.09 | 4.24 | -0.15 |
46.92 | 49.54 | -2.62 |