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Ubc Dam 20 water level today

Lake in Williamson County, Texas

646.77ft
197.14 m · NAVD88
Measured · provisional
Much below normal for the dateSteady
24 hours
0.00 ft
7 days
0.00 ft
30 days
▼ 0.37 ft
Normal for Oct 24 ?
648.82 ft

At a glance · Oct 24

Much lower than usual

Ubc Dam 20 is 2.0 ft lower than normal for Oct 24, lower than on this date in all of the last 9 years.

  • This week→ Steady
  • Lowest on record↓ 646.77 ft (2026)

Compared with this gauge's own records for the same date. A statistical guide, not advice.

Normal for Oct 24Record lowToday646.77 ft

Today compared with past years on Oct 24

Lowest to highest on this date: 646.79–649.75 ftUsual range (10th–90th percentile): 647.51–649.27 ftNormal (25th–75th percentile): 647.53–649.11 ftToday: 646.77 ftToday 646.77 ftMedian 648.82Lowest 646.79Highest 649.7525th75th
Lowest to highest on this date: 646.79–649.75 ftUsual range (10th–90th percentile): 647.51–649.27 ftNormal (25th–75th percentile): 647.53–649.11 ftToday: 646.77 ftToday 646.77 ftMedian 648.82Lowest 646.7925th75th

Where today's reading sits among this gauge's own records for the same date (±3 days). A statistical guide, not advice.

What this means

It is lower than on Oct 24 in every one of the last 9 years on record.

The lake has fallen 0.37 ft in 30 days.

Since 2013, the lowest daily level was 646.77 ft (Oct 2026) and the highest 659.06 ft (May 2015).

Ubc Dam 20 level chart

Loading chart…

Measured Normal range for the date (middle 50% of past years)

2026 compared with 2025

646648649651652JanFebMarAprMayJunJulAugSepOctNovDec202520262025-09-17: 647.59 ft2025-09-22: 647.59 ft2025-09-27: 647.17 ft2025-10-02: 647.32 ft2025-10-07: 647.20 ft2025-10-12: 647.07 ft2025-10-17: 646.96 ft2025-10-22: 646.82 ft2025-10-27: 648.21 ft2025-11-01: 648.10 ft2025-11-06: 648.04 ft2025-11-11: 647.94 ft2025-11-16: 647.88 ft2025-11-21: 648.11 ft2025-11-26: 648.10 ft2025-12-01: 648.03 ft2025-12-06: 648.02 ft2025-12-11: 647.98 ft2025-12-16: 647.95 ft2025-12-21: 647.95 ft2025-12-26: 647.95 ft2025-12-31: 647.88 ft2026-01-05: 647.85 ft2026-01-10: 647.83 ft2026-01-15: 647.78 ft2026-01-20: 647.73 ft2026-01-25: 648.98 ft2026-01-30: 649.25 ft2026-02-04: 649.33 ft2026-02-09: 649.36 ft2026-02-14: 649.39 ft2026-02-19: 649.37 ft2026-02-24: 649.32 ft2026-03-01: 649.31 ft2026-03-06: 649.28 ft2026-03-11: 649.44 ft2026-03-16: 649.32 ft2026-03-21: 649.30 ft2026-03-26: 649.25 ft2026-03-31: 649.15 ft2026-04-05: 649.41 ft2026-04-10: 649.40 ft2026-04-15: 649.39 ft2026-04-20: 649.37 ft2026-04-25: 649.41 ft2026-04-30: 649.44 ft2026-05-05: 649.42 ft2026-05-10: 649.48 ft2026-05-15: 649.38 ft2026-05-20: 649.80 ft2026-05-25: 649.59 ft2026-05-30: 649.45 ft2026-06-04: 649.54 ft2026-06-09: 649.41 ft2026-06-14: 649.34 ft2026-06-19: 649.46 ft2026-06-24: 649.43 ft2026-06-29: 649.34 ft2026-07-04: 649.25 ft2026-07-09: 649.10 ft2026-07-14: 649.29 ft2026-07-19: 649.35 ft2026-07-24: 649.22 ft2026-07-29: 649.03 ft2026-08-03: 648.86 ft2026-08-08: 648.68 ft2026-08-13: 648.49 ft2026-08-18: 648.31 ft2026-08-23: 648.12 ft2026-08-28: 647.95 ft2026-09-02: 647.79 ft2026-09-07: 647.65 ft2026-09-12: 647.48 ft2026-09-17: 647.32 ft2026-09-22: 647.18 ft2026-09-27: 647.06 ft2026-10-02: 647.05 ft2026-10-07: 646.99 ft2026-10-12: 646.89 ft2026-10-17: 646.77 ft
646648649651652JanAprJulOct202520262025-09-17: 647.59 ft2025-09-22: 647.59 ft2025-09-27: 647.17 ft2025-10-02: 647.32 ft2025-10-07: 647.20 ft2025-10-12: 647.07 ft2025-10-17: 646.96 ft2025-10-22: 646.82 ft2025-10-27: 648.21 ft2025-11-01: 648.10 ft2025-11-06: 648.04 ft2025-11-11: 647.94 ft2025-11-16: 647.88 ft2025-11-21: 648.11 ft2025-11-26: 648.10 ft2025-12-01: 648.03 ft2025-12-06: 648.02 ft2025-12-11: 647.98 ft2025-12-16: 647.95 ft2025-12-21: 647.95 ft2025-12-26: 647.95 ft2025-12-31: 647.88 ft2026-01-05: 647.85 ft2026-01-10: 647.83 ft2026-01-15: 647.78 ft2026-01-20: 647.73 ft2026-01-25: 648.98 ft2026-01-30: 649.25 ft2026-02-04: 649.33 ft2026-02-09: 649.36 ft2026-02-14: 649.39 ft2026-02-19: 649.37 ft2026-02-24: 649.32 ft2026-03-01: 649.31 ft2026-03-06: 649.28 ft2026-03-11: 649.44 ft2026-03-16: 649.32 ft2026-03-21: 649.30 ft2026-03-26: 649.25 ft2026-03-31: 649.15 ft2026-04-05: 649.41 ft2026-04-10: 649.40 ft2026-04-15: 649.39 ft2026-04-20: 649.37 ft2026-04-25: 649.41 ft2026-04-30: 649.44 ft2026-05-05: 649.42 ft2026-05-10: 649.48 ft2026-05-15: 649.38 ft2026-05-20: 649.80 ft2026-05-25: 649.59 ft2026-05-30: 649.45 ft2026-06-04: 649.54 ft2026-06-09: 649.41 ft2026-06-14: 649.34 ft2026-06-19: 649.46 ft2026-06-24: 649.43 ft2026-06-29: 649.34 ft2026-07-04: 649.25 ft2026-07-09: 649.10 ft2026-07-14: 649.29 ft2026-07-19: 649.35 ft2026-07-24: 649.22 ft2026-07-29: 649.03 ft2026-08-03: 648.86 ft2026-08-08: 648.68 ft2026-08-13: 648.49 ft2026-08-18: 648.31 ft2026-08-23: 648.12 ft2026-08-28: 647.95 ft2026-09-02: 647.79 ft2026-09-07: 647.65 ft2026-09-12: 647.48 ft2026-09-17: 647.32 ft2026-09-22: 647.18 ft2026-09-27: 647.06 ft2026-10-02: 647.05 ft2026-10-07: 646.99 ft2026-10-12: 646.89 ft2026-10-17: 646.77 ft
20262025Normal (middle 50% of past years)Usual range (10th–90th percentile)Median

Each year drawn on the same January–December axis, over this gauge's normal range for each date. Hover or tap a point for its value.

Same date in past years

DateLevelvs today
Oct 24, 2025646.79 ft▲ 0.02 ft
Oct 24, 2024647.53 ft▲ 0.76 ft
Oct 24, 2023647.52 ft▲ 0.75 ft
Oct 24, 2022647.50 ft▲ 0.73 ft
Oct 24, 2021649.06 ft▲ 2.29 ft
Oct 24, 2019647.53 ft▲ 0.76 ft
Oct 24, 2018649.27 ft▲ 2.50 ft
Oct 24, 2017649.08 ft▲ 2.31 ft
Oct 24, 2016648.93 ft▲ 2.16 ft

Records & details

Highest
659.06 ft on May 26, 2015
Lowest
646.77 ft on Oct 17, 2026
Records from
2013 (13 years of daily data)
Water temperature
Not measured here

Full history: yearly highs and lows, monthly averages →

Weather & wind

Tonight58°F · Mostly Clear
Wind S 0 to 5 mph
Saturday85°F · Mostly Sunny
Wind SE 0 to 10 mph
Saturday Night61°F · Partly Cloudy
Wind SE 5 to 10 mph
Sunday81°F · Partly Sunny
Wind ESE 5 to 10 mph
Sunday Night55°F · Mostly Cloudy
Wind SE 0 to 5 mph
Monday80°F · Partly Sunny
Wind E 0 to 5 mph

NOAA National Weather Service forecast for this lake's location, updated 1 h ago.

Nearby lakes

All Texas lake levels →