| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.60 | -0.09 |
| Feb | 0.49 | 0.57 | -0.08 |
| Mar | 0.86 | 0.87 | -0.01 |
| Apr | 1.32 | 1.17 | 0.15 |
| May | 2.87 | 2.81 | 0.06 |
| Jun | 4.01 | 3.86 | 0.15 |
| Jul | 3.54 | 3.46 | 0.08 |
| Aug | 2.67 | 2.89 | -0.22 |
| Sep | 2.57 | 2.48 | 0.09 |
| Oct | 1.95 | 1.95 | 0.00 |
| Nov | 0.86 | 0.81 | 0.05 |
| Dec | 0.70 | 0.78 | -0.08 |
22.35 | 22.25 | 0.10 |