| Region | Number of Dry Spells | Mean Duration of Dry Spells (days) | Longest Dry Spell (days) | Day when Longest Dry Spell Starts |
|---|---|---|---|---|
| Statewide | 23 | 5 | 20 | 27 Jan |
| Clim. Div. 1 | 23 | 6 | 20 | 27 Jan |
| Clim. Div. 2 | 21 | 6 | 20 | 27 Jan |
| Clim. Div. 3 | 23 | 6 | 20 | 27 Jan |
| Clim. Div. 4 | 23 | 5 | 20 | 27 Jan |
| Clim. Div. 5 | 23 | 6 | 20 | 27 Jan |
| Clim. Div. 6 | 25 | 5 | 20 | 27 Jan |
| Clim. Div. 7 | 21 | 5 | 20 | 27 Jan |
| Clim. Div. 8 | 22 | 4 | 9 | 29 May |
| Allegany | 21 | 5 | 13 | 12 Jan |
| Anne Arundel | 23 | 5 | 20 | 27 Jan |
| Baltimore | 25 | 5 | 20 | 27 Jan |
| Calvert | 22 | 6 | 20 | 27 Jan |
| Caroline | 22 | 6 | 20 | 27 Jan |
| Carroll | 25 | 5 | 20 | 27 Jan |
| Cecil | 26 | 5 | 20 | 27 Jan |
| Charles | 22 | 6 | 20 | 27 Jan |
| Dorchester | 23 | 6 | 20 | 27 Jan |
| Frederick | 24 | 5 | 20 | 27 Jan |
| Garrett | 22 | 4 | 9 | 29 May |
| Harford | 25 | 5 | 20 | 27 Jan |
| Howard | 24 | 5 | 20 | 27 Jan |
| Kent | 23 | 5 | 20 | 27 Jan |
| Montgomery | 23 | 5 | 20 | 27 Jan |
| Prince George's | 23 | 6 | 20 | 27 Jan |
| Queen Anne's | 23 | 6 | 20 | 27 Jan |
| Saint Mary's | 22 | 6 | 20 | 27 Jan |
| Somerset | 22 | 6 | 20 | 27 Jan |
| Talbot | 22 | 6 | 20 | 27 Jan |
| Washington | 24 | 5 | 20 | 27 Jan |
| Wicomico | 22 | 6 | 20 | 27 Jan |
| Worcester | 23 | 6 | 20 | 27 Jan |
| Baltimore City | 26 | 5 | 20 | 27 Jan |