| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 11.73 | 11.60 | 0.13 |
| Feb | 8.92 | 9.52 | -0.60 |
| Mar | 9.43 | 10.05 | -0.62 |
| Apr | 6.39 | 6.88 | -0.49 |
| May | 3.39 | 3.33 | 0.06 |
| Jun | 1.58 | 1.73 | -0.15 |
| Jul | 0.27 | 0.28 | -0.01 |
| Aug | 0.37 | 0.39 | -0.02 |
| Sep | 1.24 | 1.34 | -0.10 |
| Oct | 4.74 | 5.00 | -0.26 |
| Nov | 9.13 | 9.70 | -0.57 |
| Dec | 13.47 | 14.10 | -0.63 |
70.66 | 73.92 | -3.26 |