| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.93 | -0.20 |
| Feb | 0.77 | 0.87 | -0.10 |
| Mar | 1.55 | 1.66 | -0.11 |
| Apr | 2.87 | 3.09 | -0.22 |
| May | 4.12 | 4.37 | -0.25 |
| Jun | 4.44 | 4.60 | -0.16 |
| Jul | 4.19 | 4.27 | -0.08 |
| Aug | 4.30 | 4.21 | 0.09 |
| Sep | 3.24 | 3.34 | -0.10 |
| Oct | 2.81 | 2.77 | 0.04 |
| Nov | 1.55 | 1.67 | -0.12 |
| Dec | 1.03 | 1.29 | -0.26 |
31.60 | 33.07 | -1.47 |