| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.52 | 0.53 | -0.01 |
| Feb | 0.73 | 0.74 | -0.01 |
| Mar | 1.26 | 1.31 | -0.05 |
| Apr | 1.98 | 2.04 | -0.06 |
| May | 3.61 | 3.59 | 0.02 |
| Jun | 3.20 | 3.17 | 0.03 |
| Jul | 3.70 | 3.57 | 0.13 |
| Aug | 3.14 | 3.08 | 0.06 |
| Sep | 1.86 | 1.89 | -0.03 |
| Oct | 1.63 | 1.69 | -0.06 |
| Nov | 0.84 | 0.86 | -0.02 |
| Dec | 0.78 | 0.86 | -0.08 |
23.25 | 23.33 | -0.08 |