| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.82 | -0.17 |
| Feb | 2.90 | 3.28 | -0.38 |
| Mar | 4.29 | 4.50 | -0.21 |
| Apr | 4.28 | 4.50 | -0.22 |
| May | 3.77 | 3.70 | 0.07 |
| Jun | 4.35 | 4.36 | -0.01 |
| Jul | 3.87 | 3.95 | -0.08 |
| Aug | 4.31 | 4.21 | 0.10 |
| Sep | 4.31 | 4.54 | -0.23 |
| Oct | 4.76 | 4.72 | 0.04 |
| Nov | 4.06 | 4.03 | 0.03 |
| Dec | 4.46 | 4.76 | -0.30 |
49.01 | 50.37 | -1.36 |