| Region | Number of Days with Extreme Precipitation (#) | Mean Precipitation of Extreme Precipitation (in) | Maximum Precipitation (in) | Day when Maximum Precipitation Occurs |
|---|---|---|---|---|
| Statewide | 9 | 0.85 | 1.19 | 22 Jul |
| Clim. Div. 1 | 14 | 1.07 | 1.85 | 23 Jul |
| Clim. Div. 2 | 8 | 0.97 | 1.42 | 22 Jul |
| Clim. Div. 3 | 7 | 0.96 | 1.47 | 22 Jul |
| Clim. Div. 4 | 7 | 0.95 | 1.18 | 22 Jul |
| Clim. Div. 5 | 7 | 0.94 | 1.21 | 22 Jul |
| Clim. Div. 6 | 10 | 0.90 | 1.19 | 24 May |
| Clim. Div. 7 | 5 | 0.98 | 1.43 | 23 May |
| Clim. Div. 8 | 10 | 0.95 | 1.49 | 23 May |
| Allegany | 7 | 0.91 | 1.55 | 23 May |
| Anne Arundel | 8 | 0.92 | 1.20 | 22 Jul |
| Baltimore | 7 | 1.11 | 1.38 | 6 Jul |
| Calvert | 8 | 0.92 | 1.36 | 22 Jul |
| Caroline | 8 | 0.96 | 1.32 | 22 Jul |
| Carroll | 8 | 0.90 | 1.12 | 24 May |
| Cecil | 8 | 1.12 | 1.71 | 6 Jul |
| Charles | 8 | 0.92 | 1.50 | 22 Jul |
| Dorchester | 9 | 0.99 | 1.54 | 22 Jul |
| Frederick | 8 | 0.91 | 1.14 | 20 Feb |
| Garrett | 10 | 0.95 | 1.49 | 23 May |
| Harford | 7 | 1.08 | 1.48 | 6 Jul |
| Howard | 11 | 0.93 | 1.29 | 24 May |
| Kent | 8 | 0.98 | 1.26 | 22 Jul |
| Montgomery | 10 | 0.91 | 1.22 | 26 Jan |
| Prince George's | 7 | 0.96 | 1.19 | 26 Jan |
| Queen Anne's | 6 | 0.92 | 1.18 | 22 Jul |
| Saint Mary's | 10 | 0.89 | 1.47 | 22 Jul |
| Somerset | 13 | 1.11 | 1.99 | 23 Jul |
| Talbot | 6 | 0.95 | 1.27 | 22 Jul |
| Washington | 7 | 0.87 | 1.32 | 23 May |
| Wicomico | 12 | 1.06 | 1.73 | 22 Jul |
| Worcester | 14 | 1.11 | 2.06 | 23 Jul |
| Baltimore City | 8 | 1.21 | 1.48 | 6 Jul |