Nivelmap
EN

How to read levelsSources and methods

North America

Western Europe

Central Europe

Mediterranean

Nordic countries

Lake Sumner water level

Lake, New Mexico, United States

Directions

Normal for mid-October

Surface elevation

4,244.33ft Up 0.86 ft over the last 7 days

Water stored
8,940 acre‑ft
4,240 4,250 4,260

History

4,2404,2504,260ftOct 11Oct 12Oct 13Oct 14Oct 154,2404,2504,260ftOct 11Oct 13Oct 15
4,2404,2504,260ftSep 18Sep 24Oct 1Oct 8Oct 154,2404,2504,260ftSep 18Oct 1Oct 15
4,2404,2504,260ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20264,2404,2504,260ftOct 2025Apr 2026Oct 2026
4,2404,2504,260ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20264,2404,2504,260ftOct 2016Oct 2021Oct 2026
4,2404,2504,260ftJanMarMayJulSepNov20264,2404,2504,260ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

The lake level at Lake Sumner reads 4,244.33 ft, about where it usually sits at this time of year.

That puts it 4.85 ft below the median of 4,249.18 ft for mid-October, based on 34 years of readings. A year ago it stood at 4,248.47 ft (−4.14 ft).

It is on the way up, by 0.86 ft over the past week. The 30-day range is 4,233.14 ft – 4,244.39 ft.

Lakes and reservoirs often sit lower in fall after a summer of evaporation and use, and recover with winter rain and spring snowmelt.

Compared with 34 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
4,249.18 ft4.85 ft below the median for this date
Normal for this date
4,235.53 ft – 4,259.92 ft8 years in 10 fall in this range (34 years of records)
Same day last year
4,248.47 ft−4.14 ft
Lowest and highest in 30 days
4,233.14 ft – 4,244.39 ft
Lowest and highest in 12 months
4,233.14 ft – 4,255.78 ft

Boating and fishing at Lake Sumner

A lake in its usual range is what most ramps, docks and swimming areas are built for.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

No rain in the last 3 days.

17 Sat 61° 32° – Wind 11 mph
18 Sun 69° 35° – Wind 15 mph
19 Mon 73° 49° – Wind 16 mph
20 Tue 75° 51° – Wind 17 mph
21 Wed 68° 59° 0.05 in Wind 13 mph
22 Thu 69° 61° 0.17 in, 39% Wind 19 mph
23 Fri 78° 60° 0.21 in, 44% Wind 20 mph

Forecast: Open-Meteo

Sunrise 07:05 AM Sunset 06:22 PM Daylight 11 hr, 16 min First quarter 39%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Pecos River below Sumner DamRiver gauge, Pecos River 98.8 cfs Normal −0.9 cfs 1.7 mi
Pecos River near Puerto De LunaRiver gauge, Pecos River 1.11 ft Below flood stage −0.01 ft 10 mi
Fort Sumner Main Canal near Fort SumnerCanal gauge, Fort Sumner Main Canal 89.8 cfs High +7.6 cfs 11 mi
Sand Gate Diversion From Fort Sumner Canal at Fort SumnerCanal gauge, Sand Gate Diversion From Fort Sumner Canal 0.0 cfs Low ±0 13 mi
Pecos River below Taiban Creek near Fort SumnerRiver gauge, Pecos River 30.6 cfs Very low −24.7 cfs 24 mi
Pecos River below Santa Rosa DamRiver gauge, Pecos River 0.0 cfs Low ±0 32 mi
Pecos River above Santa Rosa LakeRiver gauge, Pecos River 33.0 cfs Normal −8.7 cfs 36 mi
Pecos River near DunlapRiver gauge, Pecos River 30.4 cfs Very low −25.3 cfs 39 mi

Questions and answers

How does Lake Sumner compare with last year?

It is 4.14 ft lower than on the same day last year, when the reading was 4,248.47 ft.

What is a normal level for Lake Sumner in mid-October?

The median for mid-October is 4,249.18 ft. In 8 years out of 10 the reading falls between 4,235.53 ft and 4,259.92 ft, based on 34 years of records.

Is Lake Sumner really 4,244.33 ft deep?

No. 4,244.33 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Lake Sumner today?

On Oct 15, 2026, the surface elevation was 4,244.33 ft. Up 0.86 ft over the last 7 days.

Is Lake Sumner rising or falling?

Up 0.86 ft over the last 7 days.

Is the level of Lake Sumner normal?

Normal for mid-October. Compared with 34 years of daily readings for this time of year.

How often is this data updated?

The U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:489 (Agency page)
Coordinates
34.62884, -104.39240 (WGS84)
Update interval
once a day
Licence
Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 4,244.33 ft 2026-10-15 07:00 Provisional
Water stored 8,940 acre‑ft 2026-10-15 07:00 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Bureau of Reclamation: Lake Sumner (usbr:489). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-mexico/lake-sumner

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer