| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.89 | -0.13 |
| Feb | 0.80 | 0.89 | -0.09 |
| Mar | 1.59 | 1.69 | -0.10 |
| Apr | 2.89 | 2.98 | -0.09 |
| May | 4.22 | 4.28 | -0.06 |
| Jun | 4.75 | 4.80 | -0.05 |
| Jul | 4.16 | 4.19 | -0.03 |
| Aug | 4.42 | 4.61 | -0.19 |
| Sep | 3.18 | 3.27 | -0.09 |
| Oct | 2.55 | 2.64 | -0.09 |
| Nov | 1.56 | 1.63 | -0.07 |
| Dec | 1.06 | 1.23 | -0.17 |
31.94 | 33.10 | -1.16 |