| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.92 | -0.12 |
| Feb | 0.81 | 0.92 | -0.11 |
| Mar | 1.62 | 1.73 | -0.11 |
| Apr | 2.91 | 2.99 | -0.08 |
| May | 4.15 | 4.32 | -0.17 |
| Jun | 4.82 | 5.01 | -0.19 |
| Jul | 4.20 | 4.28 | -0.08 |
| Aug | 4.54 | 4.66 | -0.12 |
| Sep | 3.24 | 3.35 | -0.11 |
| Oct | 2.63 | 2.69 | -0.06 |
| Nov | 1.57 | 1.66 | -0.09 |
| Dec | 1.13 | 1.26 | -0.13 |
32.42 | 33.79 | -1.37 |