| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.80 | -0.10 |
| Feb | 0.81 | 0.90 | -0.09 |
| Mar | 1.44 | 1.56 | -0.12 |
| Apr | 2.71 | 2.90 | -0.19 |
| May | 4.13 | 4.38 | -0.25 |
| Jun | 4.47 | 4.51 | -0.04 |
| Jul | 4.29 | 4.59 | -0.30 |
| Aug | 4.02 | 4.28 | -0.26 |
| Sep | 3.28 | 3.44 | -0.16 |
| Oct | 2.79 | 2.91 | -0.12 |
| Nov | 1.52 | 1.66 | -0.14 |
| Dec | 1.03 | 1.17 | -0.14 |
31.19 | 33.10 | -1.91 |