| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.89 | 0.94 | -0.05 |
| Feb | 0.86 | 0.94 | -0.08 |
| Mar | 1.34 | 1.41 | -0.07 |
| Apr | 2.36 | 2.41 | -0.05 |
| May | 3.24 | 3.40 | -0.16 |
| Jun | 4.52 | 4.54 | -0.02 |
| Jul | 4.14 | 4.19 | -0.05 |
| Aug | 3.70 | 3.89 | -0.19 |
| Sep | 3.22 | 3.41 | -0.19 |
| Oct | 2.96 | 3.11 | -0.15 |
| Nov | 1.64 | 1.74 | -0.10 |
| Dec | 1.26 | 1.45 | -0.19 |
30.13 | 31.43 | -1.30 |