| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.91 | -0.15 |
| Feb | 0.81 | 0.90 | -0.09 |
| Mar | 1.59 | 1.63 | -0.04 |
| Apr | 2.84 | 3.13 | -0.29 |
| May | 4.12 | 4.29 | -0.17 |
| Jun | 4.73 | 5.02 | -0.29 |
| Jul | 4.09 | 4.25 | -0.16 |
| Aug | 4.64 | 4.60 | 0.04 |
| Sep | 3.29 | 3.39 | -0.10 |
| Oct | 2.82 | 3.05 | -0.23 |
| Nov | 1.62 | 1.76 | -0.14 |
| Dec | 1.12 | 1.26 | -0.14 |
32.43 | 34.19 | -1.76 |