St Jones River at Dover, de Water Level
Live river level, flow, historical records and forecast for St Jones River at Dover, de in DE, United States, built from official government gauge data.
- Location DE, United States
- Watershed broadkill smyrna
- Primary gauge 01483700 (USGS)
About St Jones River at Dover, de
The St Jones River at Dover sits in the Broadkill-Smyrna watershed in Delaware.
The watershed
This USGS station drains 31.9 sq mi (82.6 km2) above the gauge. That is the area feeding the reading here, not the whole Broadkill-Smyrna watershed.
With 50 years on record, the station gives a useful local frame for people watching the river near Dover. It has a record high of 10.41 ft (3.17 m) in August 2011 and a record low of 2.24 ft (0.68 m) in November 2024.
What the numbers say
The seasonal pattern is modest but steady. The highest typical month is March at 3.08 ft (0.94 m), and the lowest typical month is August at 2.68 ft (0.82 m). The typical annual swing is 4.8 in (12.3 cm).
That range matters for docks, low crossings, and any intake set close to the waterline. March tends to be the higher point in the year, while August tends to be the lower one, so the river spends part of the warm season near its low end. The record low in November 2024 sits below the usual August level, which is worth noting for anyone used to judging the river by summer conditions.
The record high in August 2011 also stands out against the usual seasonal pattern. It shows this site can rise well beyond the normal month-to-month range when conditions drive it that way.
Reading the hero number
The hero number on this page compares today’s reading with the median for this calendar day across the station record. That is more useful than raw elevation because the same height can mean different things at different times of year.
At this site, the comparison is built from more than 50 years of USGS records. It lets you see whether the river is running above or below what is normal for this date, which is the better cue for daily use, fishing, and flood awareness than the absolute level alone.
How this page is built
Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.
How Nibi Metrics works · Water stories
Nibi Metrics - live water levels, flow, and forecasts for lakes and rivers across Canada, the US and the UK
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada, the US and the UK. Built on official government data.
Nibi Metrics tracks more than 13,000 gauged lakes and rivers across Canada, the United States and the United Kingdom, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, and the Environment Agency for England. Every number on the platform is measured, not modelled - taken from a government gauge on the water itself and compared against that location's own historical record for this exact date.
What you can see for any monitored lake or river
The level right now, in feet or metres, updated as the source agency publishes new readings - for many stations that is every five to fifteen minutes. How today compares to typical: every location carries its own typical-for-this-date band built from its historical record, so a reading is never just a number - it is above, below, or near what this water usually does on this calendar day. Which way it is moving: a measured RISING, FALLING, or STEADY verdict computed from the gauge's own recent readings, with the rate of change - the difference between a flood ending and one beginning. What comes next: level forecasts up to 72 hours ahead, driven by the gauge's recent behaviour, upstream water, and quantitative precipitation forecasts, alongside live radar, lightning, and weather for the surrounding region.
Alerts that watch the water for you
Set a threshold on any location - a level, a distance above typical, or a rate of climb - and Nibi emails or notifies you the moment the gauge crosses it. Cottagers use it for spring freshet, anglers for river conditions, marinas and municipalities for operations. The scanning runs around the clock against the same measured data shown on every page.
Where Nibi comes from
Nibi means water in Anishinaabemowin. The platform began at a family cottage on Lake Muskoka, Ontario, where the spring melt floods the shoreline most years and the only forecast was standing on the dock, looking, and guessing. It grew into an independent, member-funded platform run by Muskoka Research Inc. - no investors, no data resale, and a privacy policy shorter than most cookie banners. The core data is free for everyone, forever; paid plans add automation like multi-location alerts, deep history, and reports.
Coverage
Nibi spans the continent: every Canadian province and territory with active federal gauges - from Vancouver Island rivers to the Muskoka lakes, prairie reservoirs, and Quebec's hydrometric network - and the United States from Maine to the Texas Hill Country, the Ohio Valley, and the Pacific Northwest. Coverage grows where the water news is: when a basin floods, its gauges join the platform with their full historical records attached. Many stations report every five to fifteen minutes; most report at least hourly; every page states exactly when its gauge last spoke.
Free forever, funded by members
The core promise is simple: the water data is free, for everyone, forever. Live levels, maps, radar, and recent history never sit behind a paywall. Paid plans fund the platform by adding automation - multi-location alerts, decades of history, longer forecasts, and PDF reports - so the people who need more carry the cost for everyone who just needs to check the lake before driving up. There are no investors and no advertising deals shaping what the data says.
Water Stories
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How every number is computed - About the platform
