Nibi Metrics
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.
Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.
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San Pedro River at Charleston Water Level
Live river level, flow, historical records and forecast for San Pedro River at Charleston in AZ, United States, built from official government gauge data.
- Location AZ, United States
- Watershed upper san pedro
- Primary gauge 09471000 (USGS)
About San Pedro River at Charleston
San Pedro River - A lifeline in the arid Southwest.
The San Pedro River at Charleston, Arizona, flows as an essential artery in the Upper San Pedro watershed, covering a catchment area of approximately 1,234 square miles. This river plays a critical role in its semi-arid environment, where water availability is highly variable. During the summer months, monsoon thunderstorms occasionally bring explosive rainfall, driving flash floods that can rapidly elevate river flows. In contrast, the winter months typically rely on storm systems and snowmelt from the higher elevations, feeding larger rivers and emphasizing the seasonal rhythm of this region's hydrology.
The watershed context
This segment of the San Pedro River is surrounded by several peer water bodies, including the Babocomari River and Garden Canyon, emphasizing the interconnected nature of these southwestern waterways. Together, they create a network that supports the local ecosystem amidst the challenges of a predominantly dry landscape. Between rainfall events, many smaller channels can run dry, making the occurrences of flash floods crucial for recharging aquifers and sustaining wildlife.
Why the data matters here
Monitoring the San Pedro River is vital for understanding regional hydrology. The USGS collects vital data, including discharge measurements that inform local water management efforts. Today's river stage reading is compared to the median for this calendar day over the last 50 years. This comparative approach provides valuable context, highlighting fluctuations which raw elevation readings alone cannot convey. As many waterways in this region face sporadic flows, such data helps cottagers, farmers, and flood-watchers prepare for both beneficial rains and the dry spells that are characteristic of the arid Southwest.
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
