| Region | Number of Days with Extreme Precipitation (#) | Mean Precipitation of Extreme Precipitation (in) | Maximum Precipitation (in) | Day when Maximum Precipitation Occurs |
|---|---|---|---|---|
| Statewide | 13 | 0.80 | 1.19 | 22 Jul |
| Clim. Div. 1 | 16 | 1.03 | 2.11 | 23 Jul |
| Clim. Div. 2 | 12 | 0.97 | 1.67 | 22 Jul |
| Clim. Div. 3 | 14 | 0.88 | 1.42 | 22 Jul |
| Clim. Div. 4 | 11 | 0.90 | 1.18 | 22 Jul |
| Clim. Div. 5 | 10 | 0.88 | 1.17 | 22 Jul |
| Clim. Div. 6 | 13 | 0.87 | 1.19 | 24 May |
| Clim. Div. 7 | 9 | 0.88 | 1.43 | 23 May |
| Clim. Div. 8 | 12 | 0.96 | 1.49 | 23 May |
| Allegany | 11 | 0.83 | 1.55 | 23 May |
| Anne Arundel | 11 | 0.91 | 1.23 | 22 Jul |
| Baltimore | 9 | 1.04 | 1.38 | 6 Jul |
| Calvert | 12 | 0.93 | 1.44 | 22 Jul |
| Caroline | 9 | 1.01 | 1.47 | 22 Jul |
| Carroll | 12 | 0.83 | 1.12 | 24 May |
| Cecil | 11 | 1.07 | 1.62 | 6 Jul |
| Charles | 12 | 0.90 | 1.40 | 22 Jul |
| Dorchester | 12 | 1.01 | 1.70 | 22 Jul |
| Frederick | 12 | 0.86 | 1.14 | 20 Feb |
| Garrett | 12 | 0.96 | 1.49 | 23 May |
| Harford | 11 | 1.00 | 1.49 | 6 Jul |
| Howard | 13 | 0.90 | 1.29 | 24 May |
| Kent | 13 | 0.86 | 1.12 | 22 Jul |
| Montgomery | 11 | 0.90 | 1.22 | 26 Jan |
| Prince George's | 11 | 0.91 | 1.19 | 26 Jan |
| Queen Anne's | 8 | 0.90 | 1.21 | 22 Jul |
| Saint Mary's | 15 | 0.91 | 1.41 | 22 Jul |
| Somerset | 15 | 1.05 | 2.36 | 23 Jul |
| Talbot | 10 | 1.00 | 1.82 | 22 Jul |
| Washington | 11 | 0.85 | 1.32 | 23 May |
| Wicomico | 15 | 1.04 | 1.71 | 22 Jul |
| Worcester | 14 | 1.11 | 2.22 | 23 Jul |
| Baltimore City | 10 | 1.13 | 1.51 | 6 Jul |