| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.90 | -0.38 |
| Feb | 3.07 | 3.33 | -0.26 |
| Mar | 4.13 | 4.43 | -0.30 |
| Apr | 4.14 | 4.54 | -0.40 |
| May | 3.86 | 4.03 | -0.17 |
| Jun | 4.41 | 4.46 | -0.05 |
| Jul | 4.29 | 4.25 | 0.04 |
| Aug | 4.31 | 4.29 | 0.02 |
| Sep | 4.56 | 4.45 | 0.11 |
| Oct | 4.76 | 4.93 | -0.17 |
| Nov | 3.93 | 4.08 | -0.15 |
| Dec | 4.23 | 4.68 | -0.45 |
49.21 | 51.37 | -2.16 |