| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 3.34 | 0.61 |
| Feb | 3.77 | 3.53 | 0.24 |
| Mar | 3.23 | 2.97 | 0.26 |
| Apr | 1.08 | 1.03 | 0.05 |
| May | 0.42 | 0.46 | -0.04 |
| Jun | 0.06 | 0.09 | -0.03 |
| Jul | 0.01 | 0.08 | -0.07 |
| Aug | 0.02 | 0.02 | 0.00 |
| Sep | 0.08 | 0.09 | -0.01 |
| Oct | 0.70 | 0.66 | 0.04 |
| Nov | 1.45 | 1.10 | 0.35 |
| Dec | 2.98 | 2.65 | 0.33 |
17.75 | 16.02 | 1.73 |