| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.93 | -0.18 |
| Feb | 0.78 | 0.88 | -0.10 |
| Mar | 1.59 | 1.72 | -0.13 |
| Apr | 2.87 | 3.13 | -0.26 |
| May | 4.16 | 4.25 | -0.09 |
| Jun | 4.56 | 4.71 | -0.15 |
| Jul | 4.18 | 4.46 | -0.28 |
| Aug | 4.46 | 4.31 | 0.15 |
| Sep | 3.29 | 3.32 | -0.03 |
| Oct | 2.81 | 2.91 | -0.10 |
| Nov | 1.58 | 1.70 | -0.12 |
| Dec | 1.06 | 1.30 | -0.24 |
32.09 | 33.62 | -1.53 |