World: Greatest One-Minute Rainfall
| Record Value | 31.2mm (1.23") |
|---|---|
| Date of Record | 4/7/1956 |
| Length of Record | 1948-present |
| Instrumentation | Recording Rain Gauge "in satisfactory exposure" |
| Geospatial Location | Unionville, MD [38°48'N, 76°08'W, elevation: 152.18m (499ft)] |
References
Krause and Flood, 1997: Weather and Climate Extremes, US Army Corps of Engineers Topographic Engineering Center pp. 89;
Discussion
Krause and Flood (1997) note that the total precipitation during the storm was 91.0 mm (3.6 inches) of which 72 mm (2.84 in) fell during a 50-minute period from 2:50 to 3:40 P.M.
Closeup Satellite Image of Modern Unionville, MD, USA
Regional Satellite Image of Modern Unionville, MD, USA