| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.90 | -0.15 |
| Feb | 0.79 | 0.89 | -0.10 |
| Mar | 1.59 | 1.67 | -0.08 |
| Apr | 2.89 | 3.04 | -0.15 |
| May | 4.20 | 4.27 | -0.07 |
| Jun | 4.72 | 4.76 | -0.04 |
| Jul | 4.17 | 4.24 | -0.07 |
| Aug | 4.46 | 4.62 | -0.16 |
| Sep | 3.22 | 3.28 | -0.06 |
| Oct | 2.59 | 2.65 | -0.06 |
| Nov | 1.56 | 1.64 | -0.08 |
| Dec | 1.05 | 1.24 | -0.19 |
31.99 | 33.20 | -1.21 |