| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.81 | 0.99 | -0.18 |
| Feb | 0.82 | 0.95 | -0.13 |
| Mar | 1.66 | 1.77 | -0.11 |
| Apr | 2.93 | 3.14 | -0.21 |
| May | 4.21 | 4.29 | -0.08 |
| Jun | 4.78 | 4.99 | -0.21 |
| Jul | 4.25 | 4.26 | -0.01 |
| Aug | 4.66 | 4.47 | 0.19 |
| Sep | 3.40 | 3.37 | 0.03 |
| Oct | 2.77 | 2.99 | -0.22 |
| Nov | 1.63 | 1.73 | -0.10 |
| Dec | 1.17 | 1.35 | -0.18 |
33.09 | 34.30 | -1.21 |