| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.44 | 4.51 | -0.07 |
| Feb | 4.19 | 4.27 | -0.08 |
| Mar | 5.06 | 4.98 | 0.08 |
| Apr | 4.83 | 4.78 | 0.05 |
| May | 4.36 | 4.41 | -0.05 |
| Jun | 4.35 | 4.34 | 0.01 |
| Jul | 3.40 | 3.26 | 0.14 |
| Aug | 3.31 | 3.08 | 0.23 |
| Sep | 3.60 | 3.58 | 0.02 |
| Oct | 4.48 | 4.49 | -0.01 |
| Nov | 4.30 | 4.25 | 0.05 |
| Dec | 5.06 | 5.04 | 0.02 |
51.38 | 50.99 | 0.39 |