| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.80 | -0.09 |
| Feb | 0.82 | 0.89 | -0.07 |
| Mar | 1.49 | 1.55 | -0.06 |
| Apr | 2.75 | 2.92 | -0.17 |
| May | 4.20 | 4.38 | -0.18 |
| Jun | 4.45 | 4.46 | -0.01 |
| Jul | 4.40 | 4.51 | -0.11 |
| Aug | 4.09 | 4.23 | -0.14 |
| Sep | 3.30 | 3.42 | -0.12 |
| Oct | 2.76 | 2.94 | -0.18 |
| Nov | 1.55 | 1.67 | -0.12 |
| Dec | 1.07 | 1.18 | -0.11 |
31.59 | 32.95 | -1.36 |