USGS Streamgage 08253000
Casias Creek near Costilla, NM
Casias Creek near Costilla, NM is USGS streamgage 08253000 in New Mexico, monitoring river discharge in hydrologic subbasin 13020101. It drains a watershed of about 19 square miles. Discharge records at this site go back to 1937. Typical flow runs near 12.4 cfs in July and 6.8 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- New Mexico
- Drainage area
- 19 sq mi
- Gauge elevation
- 9,437 ft
- Subbasin (HUC-8)
- 13020101
- Coordinates
- 36.89686, -105.26046
- USGS site number
- 08253000
- Records begin
- 1937-05-01 (89 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 89 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
Only 9 of 12 months have enough record to summarize; the rest are omitted.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| March | — | 6.8 | — | |
| April | 4.4 | 6.8 | 12.9 | |
| May | 5.7 | 18.1 | 40 | |
| June | 6.3 | 28.2 | 62.4 | |
| July | 3.8 | 12.4 | 31.1 | |
| August | 3.7 | 8.5 | 17.2 | |
| September | 3.3 | 5.9 | 11.2 | |
| October | 3 | 5 | 7.8 | |
| November | 2.3 | 3.7 | 6 |
All values in cubic feet per second (cfs).
Common questions
- When does Casias Creek near Costilla, NM normally run highest?
- June, on the long-term record. The median daily flow that month is about 28.2 cfs, against 3.7 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Casias Creek near Costilla, NM?
- It depends on the month. In April, half of days historically fall near 6.8 cfs, with the middle 80% of days between 4.4 and 12.9 cfs. The month-by-month table on this page gives the full range.
- How long has Casias Creek near Costilla, NM been measured?
- Discharge records at USGS site 08253000 begin in 1937, about 89 years, covering roughly 4,314 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Casias Creek near Costilla, NM?
- The gauge sits at 36.89686, -105.26046, in New Mexico, in hydrologic subbasin 13020101, at an elevation of about 9,437 feet, draining roughly 19 square miles.
- Can I use Casias Creek near Costilla, NM data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.