| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.84 | -0.13 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.50 | 1.56 | -0.06 |
| Apr | 2.87 | 2.96 | -0.09 |
| May | 4.13 | 4.33 | -0.20 |
| Jun | 4.46 | 4.63 | -0.17 |
| Jul | 4.07 | 4.13 | -0.06 |
| Aug | 4.17 | 4.19 | -0.02 |
| Sep | 3.29 | 3.30 | -0.01 |
| Oct | 2.70 | 2.66 | 0.04 |
| Nov | 1.50 | 1.55 | -0.05 |
| Dec | 1.03 | 1.20 | -0.17 |
31.21 | 32.24 | -1.03 |