| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.33 | 0.07 |
| Feb | 0.27 | 0.36 | -0.09 |
| Mar | 0.72 | 0.71 | 0.01 |
| Apr | 0.89 | 0.90 | -0.01 |
| May | 1.65 | 1.78 | -0.13 |
| Jun | 1.85 | 2.11 | -0.26 |
| Jul | 2.96 | 2.78 | 0.18 |
| Aug | 3.04 | 3.37 | -0.33 |
| Sep | 1.96 | 2.07 | -0.11 |
| Oct | 1.03 | 0.98 | 0.05 |
| Nov | 0.48 | 0.56 | -0.08 |
| Dec | 0.51 | 0.48 | 0.03 |
15.76 | 16.43 | -0.67 |