| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.73 | -0.24 |
| Feb | 2.92 | 3.02 | -0.10 |
| Mar | 4.20 | 4.24 | -0.04 |
| Apr | 3.70 | 3.78 | -0.08 |
| May | 3.70 | 3.96 | -0.26 |
| Jun | 4.36 | 4.33 | 0.03 |
| Jul | 4.55 | 4.54 | 0.01 |
| Aug | 4.40 | 4.37 | 0.03 |
| Sep | 4.75 | 5.08 | -0.33 |
| Oct | 3.48 | 3.44 | 0.04 |
| Nov | 3.30 | 3.36 | -0.06 |
| Dec | 3.56 | 3.60 | -0.04 |
46.41 | 47.45 | -1.04 |