| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.91 | -0.17 |
| Feb | 0.78 | 0.87 | -0.09 |
| Mar | 1.56 | 1.67 | -0.11 |
| Apr | 2.84 | 3.08 | -0.24 |
| May | 4.14 | 4.30 | -0.16 |
| Jun | 4.49 | 4.61 | -0.12 |
| Jul | 4.21 | 4.30 | -0.09 |
| Aug | 4.35 | 4.19 | 0.16 |
| Sep | 3.26 | 3.32 | -0.06 |
| Oct | 2.86 | 2.84 | 0.02 |
| Nov | 1.58 | 1.67 | -0.09 |
| Dec | 1.05 | 1.28 | -0.23 |
31.86 | 33.04 | -1.18 |