Country: USA
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Ubc Dam 18 water level history

Daily records since 2013 · Level today: 657.09 ft

Highest on record
671.67 ft
May 26, 2015
Lowest on record
656.82 ft
Mar 20, 2025
Today
657.09 ft
Oct 24, 2026
Years of data
13
since 2013

In short

Across 12 complete years, 2025 had the lowest average level (657.94 ft) and 2015 the highest (659.99 ft).

On average the lake is lowest in August (658.73 ft) and highest in May (659.76 ft).

Ubc Dam 18 level, all years

Loading chart…

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

Each year's lowest and highest level

656660664668673201320152017201920212023202520262013: lowest 658.88 ft (2013-10-25), highest 666.53 ft (2013-10-31), average 659.41 ft, 182 days measured2014: lowest 658.81 ft (2014-08-17), highest 661.31 ft (2014-09-18), average 659.59 ft, 365 days measured2015: lowest 658.74 ft (2015-08-21), highest 671.67 ft (2015-05-26), average 659.99 ft, 365 days measured2016: lowest 658.50 ft (2016-08-07), highest 663.33 ft (2016-05-20), average 659.66 ft, 366 days measured2017: lowest 658.50 ft (2017-07-03), highest 660.52 ft (2017-01-18), average 659.22 ft, 365 days measured2018: lowest 658.48 ft (2018-06-18), highest 664.26 ft (2018-09-23), average 659.39 ft, 365 days measured2019: lowest 658.48 ft (2019-12-12), highest 664.05 ft (2019-01-03), average 659.18 ft, 355 days measured2020: lowest 658.48 ft (2020-01-12), highest 659.83 ft (2020-03-22), average 658.81 ft, 366 days measured2021: lowest 658.48 ft (2021-01-01), highest 666.30 ft (2021-06-01), average 659.00 ft, 346 days measured2022: lowest 658.48 ft (2022-12-18), highest 660.35 ft (2022-02-03), average 658.83 ft, 365 days measured2023: lowest 658.48 ft (2023-01-23), highest 659.83 ft (2023-04-29), average 658.70 ft, 365 days measured2024: lowest 656.87 ft (2024-12-14), highest 661.99 ft (2024-01-23), average 659.08 ft, 363 days measured2025: lowest 656.82 ft (2025-03-20), highest 662.39 ft (2025-07-06), average 657.94 ft, 365 days measured2026: lowest 657.03 ft (2026-01-04), highest 661.65 ft (2026-06-15), average 658.46 ft, 294 days measured
65666066466867320132017202120262013: lowest 658.88 ft (2013-10-25), highest 666.53 ft (2013-10-31), average 659.41 ft, 182 days measured2014: lowest 658.81 ft (2014-08-17), highest 661.31 ft (2014-09-18), average 659.59 ft, 365 days measured2015: lowest 658.74 ft (2015-08-21), highest 671.67 ft (2015-05-26), average 659.99 ft, 365 days measured2016: lowest 658.50 ft (2016-08-07), highest 663.33 ft (2016-05-20), average 659.66 ft, 366 days measured2017: lowest 658.50 ft (2017-07-03), highest 660.52 ft (2017-01-18), average 659.22 ft, 365 days measured2018: lowest 658.48 ft (2018-06-18), highest 664.26 ft (2018-09-23), average 659.39 ft, 365 days measured2019: lowest 658.48 ft (2019-12-12), highest 664.05 ft (2019-01-03), average 659.18 ft, 355 days measured2020: lowest 658.48 ft (2020-01-12), highest 659.83 ft (2020-03-22), average 658.81 ft, 366 days measured2021: lowest 658.48 ft (2021-01-01), highest 666.30 ft (2021-06-01), average 659.00 ft, 346 days measured2022: lowest 658.48 ft (2022-12-18), highest 660.35 ft (2022-02-03), average 658.83 ft, 365 days measured2023: lowest 658.48 ft (2023-01-23), highest 659.83 ft (2023-04-29), average 658.70 ft, 365 days measured2024: lowest 656.87 ft (2024-12-14), highest 661.99 ft (2024-01-23), average 659.08 ft, 363 days measured2025: lowest 656.82 ft (2025-03-20), highest 662.39 ft (2025-07-06), average 657.94 ft, 365 days measured2026: lowest 657.03 ft (2026-01-04), highest 661.65 ft (2026-06-15), average 658.46 ft, 294 days measured
Lowest to highest that yearYear average2026 so far

One bar per year from the lowest to the highest daily level, with the year's average. Years with no bar have no daily record in the agency archive.

Lowest years

Years ranked by their lowest daily level.

  • 2025656.82 ft on Mar 20
  • 2024656.87 ft on Dec 14
  • 2023658.48 ft on Jan 23
  • 2022658.48 ft on Dec 18
  • 2021658.48 ft on Jan 1

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (294 days)658.46657.03Jan 4661.65Jun 15
2025657.94656.82Mar 20662.39Jul 6
2024659.08656.87Dec 14661.99Jan 23
2023658.70658.48Jan 23659.83Apr 29
2022658.83658.48Dec 18660.35Feb 3
2021659.00658.48Jan 1666.30Jun 1
2020658.81658.48Jan 12659.83Mar 22
2019659.18658.48Dec 12664.05Jan 3
2018659.39658.48Jun 18664.26Sep 23
2017659.22658.50Jul 3660.52Jan 18
2016659.66658.50Aug 7663.33May 20
2015659.99658.74Aug 21671.67May 26
2014659.59658.81Aug 17661.31Sep 18
2013 (182 days)659.41658.88Oct 25666.53Oct 31

Levels in feet. Partial years show the number of days with data.

Monthly averages

MonthAverageLowestHighest
January659.06656.86664.05
February659.05656.87660.35
March659.12656.82662.14
April659.25656.82661.10
May659.76656.83671.67
June659.62658.48668.36
July659.07658.48662.39
August658.73658.30660.09
September658.74657.45664.26
October658.77657.14666.53
November659.00657.23665.86
December658.95656.87661.64

Download

Daily levels as CSV (4,827 rows; credit the original agencies listed below)