TidalMapSt Clements Creek near Clements, MD Water Level Today
NWS river forecast
| When | Stage | Flow |
|---|
Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.
Last 30 days
About this gauge
USGS gauge 01661050 sits on St Clements Creek and reads everything draining 18 square miles of the Lower Potomac basin. Its datum sits 5 feet above sea level NAVD88. Daily flow has been on record here since 1969, 56 years of it.
Normal flows here
St Clements Creek runs a median of 11 cfs at this gauge across 56 years of record. March is the fullest month at a median 21 cfs, and September the leanest at 2.8 cfs. The highest daily mean on record is 2,230 cfs in 2020, and the lowest is 0.0 cfs in 1988.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 17 cfs | 155% |
| Feb | 19 cfs | 173% |
| Mar | 21 cfs | 191% |
| Apr | 20 cfs | 182% |
| May | 13 cfs | 118% |
| Jun | 7.5 cfs | 69% |
| Jul | 4.0 cfs | 36% |
| Aug | 3.1 cfs | 28% |
| Sep | 2.8 cfs | 25% |
| Oct | 4.7 cfs | 43% |
| Nov | 8.4 cfs | 76% |
| Dec | 14 cfs | 127% |
Medians from the USGS daily-statistics record, 1969 to 2025. A month at 100% is running at its own long-term median.
Flood stages and record crests
St Clements Creek reaches flood stage at this gauge at 7 feet. NWS starts watching it at 6 feet. The highest crest on record is 7.6 feet, in August 2011.
| Category | Gage height |
|---|---|
| Action | 6 ft |
| Minor flooding | 7 ft |
| Moderate flooding | 8 ft |
| Major flooding | 13 ft |
| When | Crest |
|---|---|
| August 2011 | 7.6 ft |
| September 1979 | 7 ft |
| June 1972 | 6.5 ft |
| March 1994 | 6.5 ft |
| September 1999 | 6.4 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge CLMM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- Mcintosh Run near Leonardtown, MD
- St Marys River at Great Mills, MD
- Zekiah Swamp Run near Newtown, MD
- Mattawoman Creek near Pomonkey, MD
- Piscataway Creek at Piscataway, MD
- Western Branch at Upper Marlboro, MD
- Piscataway Creek near Tappahannock, VA
- Cameron Run at Alexandria, VA
- Beaverdam Creek near Cheverly, MD
- Patuxent River near Bowie, MD
- Fourmile Run at Alexandria, VA
- Mattaponi River near Beulahville, VA
Live streamflow and gage height: USGS gauge 01661050. Percentile context computed against the gauge's period of record. Not for navigation.
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