HydrionisGlobal Water Intelligence
Monitored reservoir

Lake Hudson Near Locust Grove, OK

United States Geological Survey reservoir gauge 07191400 in OK, with published storage from 1989.

Storage record07191400

Storage now, against this reservoir's own record

263.01 Mm³
Stored, August 2026
45th
Percentile among 34 Augs on record
-1.6%
Against the Aug 1991–2020 average
-0.2%
Change over the 12 months to 2026-08

Storage in August 2026 was around the middle of the Aug record, ranked against 34 other Augs held for this reservoir.

Storage, 1989–2026

Monthly mean storage
394 monthly values, 1989 to 2026
Monthly mean storageMonthly mean storage: Lake Hudson Near Locust Grove, OK in Mm³, from 1989.5833333333333 to 2026.5833333333333.02505007501,000Mm³1989.583333333333319982002.16666666666672006.33333333333332010.52014.66666666666672018.83333333333332023Year

Monthly means of the publisher's daily record. Volume, not percentage of capacity: without a capacity whose definition is stated, fullness cannot be computed.

View the data behind this chart
Underlying data
PeriodLake Hudson Near Locust Grove, OK (Mm³)
August 1989613
September 1989599
October 1989609
November 1989604
December 1989615
January 1990604
April 1990748
June 1990855
July 1990646
August 1990625
September 1990622
October 1994250
November 1994279
December 1994251
January 1995255
February 1995252
March 1995252
April 1995262
May 1995338
June 1995434
July 1995311
August 1995255
September 1995253
October 1995251
November 1995247
December 1995246
January 1996254
February 1996252
March 1996255
April 1996253
May 1996255
June 1996255
July 1996255
August 1996254
September 1996254
October 1996249
November 1996283
December 1996261
January 1997255
February 1997263
March 1997268
April 1997251
May 1997253
June 1997253
July 1997256
August 1997257
September 1997255
October 1997258
November 1997232
December 1997250
January 1998311
February 1998251
March 1998318
April 1998290
May 1998257
June 1998261
July 1998256
August 1998254
September 1998248
October 1998287
November 1998276
December 1998244
January 1999247
February 1999245
March 1999248
April 1999276
May 1999419
June 1999319
July 1999312
August 1999264
September 1999254
October 1999248
November 1999240
December 1999249
January 2000247
February 2000246
March 2000246
April 2000246
May 2000266
June 2000294
July 2000291
August 2000288
September 2000257
October 2000248
November 2000253
December 2000245
January 2001259
February 2001303
March 2001286
April 2001255
May 2001271
June 2001282
July 2001286
August 2001282
September 2001274
October 2001256
November 2001248
December 2001247
January 2002254
February 2002255
March 2002260
April 2002261
May 2002294
June 2002295
July 2002261
August 2002264
September 2002251
October 2002240
November 2002245
December 2002249
January 2003260
February 2003260
March 2003258
April 2003259
May 2003264
June 2003265
July 2003265
August 2003264
September 2003259
October 2003252
November 2003258
December 2003264
January 2004263
February 2004261
March 2004302
April 2004294
May 2004264
June 2004264
July 2004287
August 2004269
September 2004264
October 2004253
November 2004274
December 2004266
January 2005295
February 2005261
March 2005261
April 2005266
May 2005260
June 2005279
July 2005276
August 2005272
September 2005273
October 2005256
November 2005222
December 2005207
January 2006196
February 2006188
March 2006201
April 2006244
May 2006272
June 2006260
July 2006260
August 2006262
September 2006254
October 2006244
November 2006242
December 2006237
January 2007268
February 2007261
March 2007254
April 2007257
May 2007300
June 2007316
July 2007456
August 2007313
September 2007259
October 2007253
November 2007253
December 2007269
January 2008269
February 2008272
March 2008314
April 2008382
May 2008314
June 2008394
July 2008326
August 2008279
September 2008275
October 2008257
November 2008255
December 2008253
January 2009258
February 2009273
March 2009262
April 2009282
May 2009383
June 2009273
July 2009264
August 2009271
September 2009275
October 2009281
November 2009266
December 2009257
January 2010261
February 2010262
March 2010266
April 2010265
May 2010267
June 2010268
July 2010275
August 2010261
September 2010261
October 2010252
November 2010262
December 2010262
January 2011255
February 2011261
March 2011265
April 2011295
May 2011315
June 2011261
July 2011264
August 2011265
September 2011260
October 2011254
November 2011263
December 2011265
January 2012256
February 2012255
March 2012296
April 2012259
May 2012264
June 2012254
July 2012247
August 2012249
September 2012262
October 2012262
November 2012260
December 2012268
January 2013272
February 2013268
March 2013269
April 2013268
May 2013266
June 2013282
July 2013267
August 2013282
September 2013258
October 2013256
November 2013259
December 2013260
January 2014260
February 2014259
March 2014261
April 2014259
May 2014261
June 2014263
July 2014260
August 2014264
September 2014262
October 2014261
November 2014258
December 2014260
January 2015259
February 2015259
March 2015260
April 2015255
May 2015315
June 2015458
July 2015326
August 2015260
September 2015258
October 2015258
November 2015261
December 2015309
January 2016305
February 2016259
March 2016261
April 2016257
May 2016253
June 2016254
July 2016257
August 2016261
September 2016259
October 2016273
November 2016259
December 2016257
January 2017258
February 2017257
March 2017258
April 2017278
May 2017457
June 2017278
July 2017257
August 2017256
September 2017257
October 2017262
November 2017260
December 2017258
January 2018259
February 2018274
March 2018263
April 2018260
May 2018261
June 2018258
July 2018261
August 2018259
September 2018258
October 2018263
November 2018260
December 2018257
January 2019266
February 2019261
March 2019260
April 2019262
May 2019432
June 2019509
July 2019387
August 2019283
September 2019304
October 2019303
November 2019285
December 2019264
January 2020280
February 2020274
March 2020301
April 2020267
May 2020252
June 2020250
July 2020257
August 2020260
September 2020259
October 2020259
November 2020260
December 2020260
January 2021259
February 2021240
March 2021259
April 2021259
May 2021257
June 2021262
July 2021262
August 2021261
September 2021264
October 2021260
November 2021258
December 2021259
January 2022259
February 2022261
March 2022262
April 2022257
May 2022267
June 2022261
July 2022261
August 2022260
September 2022263
October 2022259
November 2022262
December 2022262
January 2023263
February 2023264
March 2023263
April 2023262
May 2023260
June 2023263
July 2023264
August 2023265
September 2023263
October 2023259
November 2023259
December 2023261
January 2024263
February 2024263
March 2024262
April 2024259
May 2024263
June 2024262
July 2024262
August 2024262
September 2024262
October 2024261
November 2024262
December 2024262
January 2025263
February 2025262
March 2025325
April 2025362
May 2025295
June 2025409
July 2025327
August 2025264
September 2025263
October 2025265
November 2025262
December 2025259
January 2026259
February 2026259
March 2026259
April 2026267
May 2026267
June 2026318
July 2026298
August 2026263

The reservoir's year

Seasonal storage profile
Each calendar month's reference average, against the most recent year
Seasonal storage profileSeasonal storage profile: 1991–2020 average, Most recent 12 months in Mm³, from 1 to 12.0100200300400Mm³123456789101112Month1991–2020 average 1: 262 Mm³1991–2020 average 2: 259 Mm³1991–2020 average 3: 267 Mm³1991–2020 average 4: 269 Mm³1991–2020 average 5: 298 Mm³1991–2020 average 6: 299 Mm³1991–2020 average 7: 285 Mm³1991–2020 average 8: 267 Mm³1991–2020 average 9: 262 Mm³1991–2020 average 10: 259 Mm³1991–2020 average 11: 258 Mm³1991–2020 average 12: 256 Mm³Most recent 12 months 1: 259 Mm³Most recent 12 months 2: 259 Mm³Most recent 12 months 3: 259 Mm³Most recent 12 months 4: 267 Mm³Most recent 12 months 5: 267 Mm³Most recent 12 months 6: 318 Mm³Most recent 12 months 7: 298 Mm³Most recent 12 months 8: 263 Mm³Most recent 12 months 9: 263 Mm³Most recent 12 months 10: 265 Mm³Most recent 12 months 11: 262 Mm³Most recent 12 months 12: 259 Mm³
  • 1991–2020 average
  • Most recent 12 months

Twelve separate averages, one per calendar month. A January average describes Januaries only. Months are plotted 1–12.

View the data behind this chart
Underlying data
Period1991–2020 average (Mm³)Most recent 12 months (Mm³)
Jan262259
Feb259259
Mar267259
Apr269267
May298267
Jun299318
Jul285298
Aug267263
Sep262263
Oct259265
Nov258262
Dec256259

Rate and persistence

-0.04 Mm³
Mean drawdown per month over 12 months
0 of 24
Months in the last two years below the 20th percentile for their own month

Rates are computed only across an unbroken run of months, so a rate is never divided by a period in which some of the change was not observed. Percentile counts compare each month with the same calendar month in every other year held.

Location

Lake Hudson Near Locust Grove, OK
Gauge location
Lake Hudson Near Locust Grove, OKLake Hudson Near Locust Grove, OK — 263.01 Mm³Lake Hudson Near Locust Grove, OK — 263.01 Mm³

Where this comes from

394 monthly observations 1989–2026 Mm³
Spatially aggregatedHigh confidenceAugust 2026

Source: USGS — National Water Information System, 07191400. Licence: Open.

Method: Monthly mean of daily reservoir storage published by the USGS in acre-feet and converted to millions of cubic metres. Months with fewer than 20 days of record are not published rather than averaged from a partial month.

Reservoir storage is managed as well as observed: a drawdown may reflect an operating rule, flood-control rule curve or scheduled release rather than a shortage. Compare a month against the same month in other years, and do not read a fall as a supply signal without knowing the operating regime.

Retrieved 25 August 2026.

Monthly mean of daily reservoir storage published by the USGS in acre-feet and converted to millions of cubic metres. Months with fewer than 20 days of record are not published rather than averaged from a partial month.

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