| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.53 | -0.02 |
| Feb | 0.69 | 0.71 | -0.02 |
| Mar | 1.33 | 1.38 | -0.05 |
| Apr | 1.87 | 1.86 | 0.01 |
| May | 3.25 | 3.32 | -0.07 |
| Jun | 3.10 | 3.15 | -0.05 |
| Jul | 3.48 | 3.53 | -0.05 |
| Aug | 2.93 | 2.91 | 0.02 |
| Sep | 1.75 | 1.71 | 0.04 |
| Oct | 1.65 | 1.70 | -0.05 |
| Nov | 0.74 | 0.75 | -0.01 |
| Dec | 0.75 | 0.83 | -0.08 |
22.05 | 22.38 | -0.33 |