Lake levels › New Mexico

Costilla Reservoir water level today

Lower than usual for this time of year

9,518.70ft

feet above sea level ·

vs normal for Oct 10−17.5 ft
24 hours+0.19 ft
7 days+2.1 ft
30 days+4.5 ft
vs a year ago−3.9 ft

Is Costilla Reservoir low right now?

Costilla Reservoir was at 9,518.70 ft on October 10, 2026. That is 17.51 ft below the typical level for October 10 — lower than in 9 of 10 past years. Over the past week the lake has been rising about 0.29 ft a day.

Last 12 monthsDaily level Normal range (10–90% of past years)
9,5059,5229,5409,5589,575NovDecJanFebMarAprMayJunJulAugSepOct

Costilla Reservoir on Oct 10 in past years

20249,524.1−5.4
20239,536.1−17.4
20229,543.8−25.1
20219,532.0−13.3
20209,523.1−4.4
20199,545.1−26.4

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 109,518.66+0.15
Oct 99,518.51+0.26
Oct 89,518.25+0.27
Oct 79,517.98+0.31
Oct 69,517.67+0.37
Oct 59,517.30+0.34
Oct 49,516.96+0.34
Oct 39,516.62+0.38
Oct 29,516.24+0.44
Oct 19,515.80+0.59
Sep 309,515.21+0.22
Sep 299,514.99−0.14
Sep 289,515.13−0.18
Sep 279,515.31−0.13

Daily means of the operator's readings (midnight to midnight, local time).

About Costilla Reservoir

10-year range
9,509.6 ft (June 30, 2026) to 9,575.1 ft (June 25, 2017)
Data
U.S. Geological Survey — USGS 08253900
Datum
NGVD29 (gage datum 9473 ft + gage height)

Lakes near Costilla Reservoir

Questions

Is Costilla Reservoir low right now?

Costilla Reservoir was at 9,518.70 ft on October 10, 2026. That is 17.51 ft below the typical level for October 10 — lower than in 9 of 10 past years. Over the past week the lake has been rising about 0.29 ft a day.

How often is the Costilla Reservoir level updated?

The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

U.S. Geological Survey (USGS 08253900). Readings are provisional and can be revised.