| Region | Number of Days with Extreme Precipitation (#) | Mean Precipitation of Extreme Precipitation (in) | Maximum Precipitation (in) | Day when Maximum Precipitation Occurs |
|---|---|---|---|---|
| Statewide | 15 | 0.93 | 2.22 | 10 Jan |
| Clim. Div. 1 | 12 | 1.31 | 2.16 | 10 Jan |
| Clim. Div. 2 | 11 | 1.14 | 2.61 | 10 Jan |
| Clim. Div. 3 | 16 | 0.93 | 2.27 | 10 Jan |
| Clim. Div. 4 | 12 | 1.13 | 2.37 | 10 Jan |
| Clim. Div. 5 | 14 | 1.06 | 2.23 | 10 Jan |
| Clim. Div. 6 | 17 | 1.08 | 2.37 | 10 Jan |
| Clim. Div. 7 | 15 | 1.05 | 2.75 | 9 Aug |
| Clim. Div. 8 | 14 | 1.12 | 2.43 | 9 Aug |
| Allegany | 15 | 1.11 | 3.20 | 9 Aug |
| Anne Arundel | 13 | 1.13 | 2.46 | 10 Jan |
| Baltimore | 17 | 1.16 | 2.62 | 10 Jan |
| Calvert | 13 | 1.04 | 2.34 | 10 Jan |
| Caroline | 10 | 1.20 | 2.64 | 10 Jan |
| Carroll | 18 | 1.08 | 2.22 | 10 Jan |
| Cecil | 14 | 1.25 | 2.49 | 6 Jun |
| Charles | 11 | 1.07 | 2.16 | 10 Jan |
| Dorchester | 10 | 1.21 | 2.58 | 10 Jan |
| Frederick | 18 | 1.09 | 2.37 | 9 Aug |
| Garrett | 14 | 1.12 | 2.44 | 9 Aug |
| Harford | 12 | 1.28 | 2.41 | 6 Jun |
| Howard | 18 | 1.11 | 2.53 | 10 Jan |
| Kent | 14 | 1.11 | 2.09 | 10 Jan |
| Montgomery | 13 | 1.17 | 2.29 | 10 Jan |
| Prince George's | 12 | 1.11 | 2.31 | 10 Jan |
| Queen Anne's | 14 | 1.03 | 2.32 | 10 Jan |
| Saint Mary's | 13 | 1.03 | 2.37 | 10 Jan |
| Somerset | 12 | 1.26 | 2.12 | 10 Jan |
| Talbot | 13 | 1.07 | 2.63 | 10 Jan |
| Washington | 15 | 1.08 | 2.32 | 9 Aug |
| Wicomico | 10 | 1.36 | 2.31 | 10 Jan |
| Worcester | 13 | 1.35 | 2.25 | 29 Mar |
| Baltimore City | 17 | 1.18 | 2.88 | 10 Jan |