| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.83 | -0.13 |
| Feb | 0.78 | 0.88 | -0.10 |
| Mar | 1.48 | 1.58 | -0.10 |
| Apr | 2.85 | 2.94 | -0.09 |
| May | 4.14 | 4.29 | -0.15 |
| Jun | 4.38 | 4.46 | -0.08 |
| Jul | 4.14 | 4.22 | -0.08 |
| Aug | 4.07 | 4.17 | -0.10 |
| Sep | 3.18 | 3.24 | -0.06 |
| Oct | 2.79 | 2.70 | 0.09 |
| Nov | 1.53 | 1.61 | -0.08 |
| Dec | 1.00 | 1.20 | -0.20 |
31.04 | 32.12 | -1.08 |