| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.99 | -0.20 |
| Feb | 0.81 | 0.95 | -0.14 |
| Mar | 1.65 | 1.78 | -0.13 |
| Apr | 2.93 | 3.15 | -0.22 |
| May | 4.18 | 4.30 | -0.12 |
| Jun | 4.70 | 4.97 | -0.27 |
| Jul | 4.24 | 4.32 | -0.08 |
| Aug | 4.64 | 4.45 | 0.19 |
| Sep | 3.37 | 3.39 | -0.02 |
| Oct | 2.78 | 2.99 | -0.21 |
| Nov | 1.62 | 1.73 | -0.11 |
| Dec | 1.16 | 1.36 | -0.20 |
32.87 | 34.38 | -1.51 |