About this river
Hillsborough River is a 24.2 mile river near Tampa Bay Boating Adventures in Florida. Streamflow is measured at the USGS gauge Hillsborough RV at State Park near Zephyrhills, FL (site 02303000). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1940 to 2026
Hillsborough River typically runs highest in August, at a median 272 cfs, and lowest in May, at 77 cfs. The highest flow on record for any single day is 12,300 cfs, in 1960.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 105 | 83 to 158 | |
| February | 118 | 84 to 173 | |
| March | 106 | 80 to 193 | |
| April | 90 | 68 to 137 | |
| May | 77 | 60 to 99 | |
| June | 92 | 70 to 144 | |
| July | 171 | 108 to 311 | |
| August | 272 | 150 to 542 | |
| September | 269 | 146 to 588 | |
| October | 133 | 91 to 266 | |
| November | 102 | 78 to 135 | |
| December | 98 | 80 to 131 |
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 87 years of record. Statistics published by the US Geological Survey for Hillsborough RV at State Park near Zephyrhills, FL (site 02303000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Hillsborough River. Ramp data comes from the USGS national boat-ramp inventory.
- Rick's on the RiverHillsborough RiverRestricted
- Lake Weeks (Lake Seffner) Public Boat RampLake WeeksPublic
- Lowry Park Public Boat RampHillsborough RiverPublic
- Harney Park - Tampa Bypass CanalC-135 Tampa Bypass CanalPublic
- Riverhills Park Boat Ramp (Temple Terrace)Hillsborough RiverPublic
- Baker Creek Public Boat RampLake ThonotosassaPublic
- Rotary Riverfront Park (Temple Terrace)Hillsborough RiverPublic
- John B. Sargeant Public Boat RampHillsborough RiverPublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Hillsborough River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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