| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.50 | -0.29 |
| Feb | 2.76 | 3.02 | -0.26 |
| Mar | 3.12 | 3.31 | -0.19 |
| Apr | 3.59 | 3.96 | -0.37 |
| May | 4.66 | 4.63 | 0.03 |
| Jun | 5.17 | 5.46 | -0.29 |
| Jul | 4.16 | 4.36 | -0.20 |
| Aug | 5.11 | 5.70 | -0.59 |
| Sep | 5.72 | 5.92 | -0.20 |
| Oct | 4.87 | 5.09 | -0.22 |
| Nov | 4.18 | 4.49 | -0.31 |
| Dec | 4.11 | 4.55 | -0.44 |
51.66 | 54.99 | -3.33 |