| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.97 | 0.98 | -0.01 |
| Feb | 1.02 | 1.01 | 0.01 |
| Mar | 1.96 | 1.91 | 0.05 |
| Apr | 3.40 | 3.29 | 0.11 |
| May | 4.53 | 4.31 | 0.22 |
| Jun | 5.31 | 5.33 | -0.02 |
| Jul | 4.38 | 4.48 | -0.10 |
| Aug | 4.43 | 4.47 | -0.04 |
| Sep | 3.65 | 3.54 | 0.11 |
| Oct | 2.53 | 2.34 | 0.19 |
| Nov | 1.76 | 1.62 | 0.14 |
| Dec | 1.24 | 1.25 | -0.01 |
35.18 | 34.53 | 0.65 |