| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.95 | 1.03 | -0.08 |
| Feb | 0.90 | 1.00 | -0.10 |
| Mar | 1.41 | 1.43 | -0.02 |
| Apr | 2.45 | 2.51 | -0.06 |
| May | 3.23 | 3.34 | -0.11 |
| Jun | 4.41 | 4.39 | 0.02 |
| Jul | 4.07 | 3.91 | 0.16 |
| Aug | 3.63 | 3.72 | -0.09 |
| Sep | 3.24 | 3.46 | -0.22 |
| Oct | 2.96 | 2.95 | 0.01 |
| Nov | 1.73 | 1.83 | -0.10 |
| Dec | 1.31 | 1.44 | -0.13 |
30.29 | 31.01 | -0.72 |