Rillito Creek At La Cholla Blvd Near Tucson flow report

Arizona, USA USGS #09486055 ↗

As of July 13, 2026, Rillito Creek At La Cholla Blvd Near Tucson is flowing at 1 cfs with a gage height of 2.27 ft. Source: USGS gauge #09486055, refreshed throughout the day.

Stale data This gauge hasn’t reported in days (last reading unknown). The readings below may not reflect current conditions.
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Rillito Creek At La Cholla Blvd Near Tucson
USGS gauge #09486055
1 cfs streamflow
Latest reading from this gauge.
Gage height
2.27ft
Water temp
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% of median
Since yesterday
— 0%
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Conditions summary

Rillito Creek At La Cholla Blvd Near Tucson at a glance

How Rillito Creek At La Cholla Blvd Near Tucson is running right now, where it sits on the map, and the key gauge stats.

Rillito Creek At La Cholla Blvd Near Tucson is flowing at 1 cfs, with the water sitting 2.27 ft at the gage.

This is USGS gauge #09486055 in Arizona. Over the past 10 days the average has been 0 cfs, peaking at 1 cfs.

For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Arizona flow report.

Rillito Creek At La Cholla Blvd Near Tucson on the map Open map →
Site IDUSGS 09486055
Last updated2026-07-13
Gage height, ft2.27 ft
Streamflow, ft³/s0.79 ft3/s
Max recorded3,920 cfs
Historical context

How does this compare to past years?

Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.

Detailed forecast

Weather Forecast

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day forecast

Daily temperatures, snow, and rain projected over the next two weeks.

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About this location

Rillito Creek At La Cholla Blvd Near Tucson

The main contributors to the flow of water in the Rillito Creek are stormwater runoff and groundwater discharge. There are no significant dams or tributaries that affect the flow of water at this particular location. The hydrology of the Rillito Creek is highly seasonal, with peak flows occurring in late summer due to monsoon season. Interestingly, the Rillito River Walk, a popular hiking and biking trail, runs alongside the Rillito Creek and is often flooded during the monsoon season, making for a unique outdoor experience.

Regional streamflow

Nearby streamflow levels

Cross-check Rillito Creek At La Cholla Blvd Near Tucson's discharge against nearby gauges to spot whether the change here is local or regional.

Nearby recreation

Plan a trip

Reservoirs, boat launches, river runs, and fishing spots within driving distance of Rillito Creek At La Cholla Blvd Near Tucson.

River levels & flood safety

Read the level before you go
A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
Respect cold water
Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
Watch for swiftwater hazards
Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
Mind flash floods & releases
Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.

Track Rillito Creek At La Cholla Blvd Near Tucson in the Snoflo app

Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Rillito Creek At La Cholla Blvd Near Tucson crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.

FAQ

About Rillito Creek At La Cholla Blvd Near Tucson

Where does the streamflow data for Rillito Creek At La Cholla Blvd Near Tucson come from?

Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 09486055. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.

How often is the report updated?

USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.

What's the difference between discharge and gage height?

Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.

How is "percent of median" calculated?

Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.

What are flood stages, and is this river safe right now?

Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.

Can I get alerts when Rillito Creek At La Cholla Blvd Near Tucson rises?

Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.