About this river
Patuxent River is a 3.8 mile river near Annapolis Canoe and Kayak in Maryland. Streamflow is measured at the USGS gauge Patuxent River near Bowie, MD (site 01594440). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1977 to 2026
Patuxent River typically runs highest in April, at a median 396 cfs, and lowest in September, at 134 cfs. The highest flow on record for any single day is 13,700 cfs, in 2011.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 292 | 200 to 465 | |
| February | 337 | 227 to 526 | |
| March | 375 | 253 to 623 | |
| April | 396 | 243 to 600 | |
| May | 311 | 203 to 522 | |
| June | 215 | 156 to 371 | |
| July | 165 | 117 to 279 | |
| August | 148 | 109 to 262 | |
| September | 134 | 104 to 204 | |
| October | 144 | 113 to 251 | |
| November | 192 | 151 to 314 | |
| December | 249 | 174 to 434 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 49 years of record. Statistics published by the US Geological Survey for Patuxent River near Bowie, MD (site 01594440). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Patuxent River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
