Around here
Around Rillito River
- Red Hills Visitor Center (West)Visitor center12.1 mi (opens in a new tab)
- Saguaro National Park West - The Red Hills Visitor CenterVisitor center12.1 mi (opens in a new tab)
- Saguaro National ParkRecreation area15.2 mi (opens in a new tab)
- Saguaro National Park East - Rincon Mountain District Visitor CenterVisitor center17.2 mi (opens in a new tab)
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Rillito River is a 12.0 mile river. Streamflow is measured at the USGS gauge Rillito Creek at LA Cholla Blvd near Tucson, AZ (site 09486055). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1996 to 2026
Rillito River typically runs highest in December, at a median 0.0 cfs, and lowest in January, at 0.0 cfs. The highest flow on record for any single day is 10,300 cfs, in 2006.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 0.0 | 0.0 to 0.0 |
| February | 0.0 | 0.0 to 0.0 |
| March | 0.0 | 0.0 to 0.0 |
| April | 0.0 | 0.0 to 0.0 |
| May | 0.0 | 0.0 to 0.0 |
| June | 0.0 | 0.0 to 0.0 |
| July | 0.0 | 0.0 to 0.0 |
| August | 0.0 | 0.0 to 0.1 |
| September | 0.0 | 0.0 to 0.0 |
| October | 0.0 | 0.0 to 0.0 |
| November | 0.0 | 0.0 to 0.0 |
| December | 0.0 | 0.0 to 0.0 |
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 31 years of record. Statistics published by the US Geological Survey for Rillito Creek at LA Cholla Blvd near Tucson, AZ. (site 09486055). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Rillito River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Rillito 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.
