HydrionisGlobal Water Intelligence
Monitored reservoir

Lake Lawtonka Near Lawton, OK

United States Geological Survey reservoir gauge 07309500 in OK, with published storage from 1994.

Storage record07309500

Storage now, against this reservoir's own record

55.65 Mm³
Stored, August 2026
9th
Percentile among 23 Augs on record
-10.1%
Change over the 12 months to 2026-08

Storage in August 2026 was lower than almost every other Aug on record, ranked against 23 other Augs held for this reservoir.

Storage, 1994–2026

Monthly mean storage
275 monthly values, 1994 to 2026
Monthly mean storageMonthly mean storage: Lake Lawtonka Near Lawton, OK in Mm³, from 1994.75 to 2026.5833333333333.020406080Mm³1994.752006.66666666666672009.58333333333332012.52015.41666666666672018.33333333333332021.252024.1666666666667Year

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 Lawtonka Near Lawton, OK (Mm³)
October 199460.1
November 199462.6
December 199468.2
January 199566.7
February 199565.8
March 199566.6
April 199568.5
May 199572.1
June 199573.2
July 199570.1
August 199569.7
September 199569.0
October 200457.2
November 200461.6
December 200465.9
January 200566.3
February 200567.4
March 200566.7
April 200564.3
May 200561.7
June 200559.9
July 200558.4
August 200556.9
September 200556.4
October 200556.0
November 200554.1
December 200552.9
January 200652.1
February 200652.3
March 200652.8
April 200653.5
May 200655.1
June 200653.3
July 200649.7
August 200647.1
September 200646.6
October 200647.0
November 200647.5
December 200648.9
January 200752.6
February 200756.0
March 200758.4
April 200767.8
May 200768.1
June 200769.0
July 200767.7
August 200767.1
September 200765.7
October 200763.1
November 200760.3
December 200759.5
January 200858.7
February 200858.3
March 200861.9
April 200866.6
May 200867.3
June 200865.0
July 200860.7
August 200857.9
September 200857.8
October 200857.3
November 200856.8
December 200857.0
January 200957.8
February 200958.9
March 200959.6
April 200959.2
May 200966.1
June 200965.4
July 200961.1
August 200958.4
September 200957.8
October 200959.2
November 200960.1
December 200959.5
January 201060.7
February 201066.6
March 201067.5
April 201067.3
May 201066.7
June 201064.3
July 201066.9
August 201063.6
September 201059.7
October 201058.8
November 201059.5
December 201059.3
January 201159.0
February 201159.1
March 201159.4
April 201160.3
May 201160.1
June 201158.4
July 201156.8
August 201155.1
September 201153.9
October 201154.0
November 201155.0
December 201157.2
January 201259.5
February 201261.6
March 201263.0
April 201265.0
May 201264.5
June 201261.9
July 201258.9
August 201257.2
September 201256.5
October 201256.9
November 201257.3
December 201258.2
January 201359.9
February 201361.0
March 201360.5
April 201364.2
May 201369.9
June 201369.8
July 201367.6
August 201369.3
September 201366.3
October 201363.2
November 201360.9
December 201359.2
January 201458.8
February 201460.1
March 201460.4
April 201460.1
May 201459.4
June 201461.0
July 201461.5
August 201461.1
September 201460.2
October 201460.2
November 201460.9
December 201461.9
January 201560.4
February 201559.0
March 201559.2
April 201560.8
May 201568.4
June 201569.4
July 201567.1
August 201562.8
September 201559.3
October 201559.3
November 201559.6
December 201563.5
January 201668.9
February 201669.5
March 201667.8
April 201668.2
May 201668.7
June 201668.7
July 201666.4
August 201662.5
September 201659.9
October 201658.8
November 201659.7
December 201658.9
January 201759.6
February 201760.3
March 201762.0
April 201767.4
May 201767.5
June 201766.2
July 201764.3
August 201763.0
September 201765.2
October 201768.2
November 201767.6
December 201766.6
January 201865.5
February 201864.5
March 201864.1
April 201862.7
May 201862.6
June 201860.3
July 201859.2
August 201859.7
September 201863.9
October 201867.7
November 201867.7
December 201867.8
January 201967.8
February 201967.7
March 201967.6
April 201967.8
May 201967.9
June 201967.5
July 201965.5
August 201961.7
September 201959.8
October 201958.3
November 201959.4
December 201958.9
January 202059.6
February 202062.1
March 202064.5
April 202067.5
May 202067.4
June 202066.7
July 202066.2
August 202063.2
September 202062.6
October 202061.0
November 202061.0
December 202059.9
January 202162.3
February 202162.0
March 202161.6
April 202160.8
May 202160.6
June 202163.4
July 202167.5
August 202165.8
September 202162.7
October 202160.2
November 202158.5
December 202158.3
January 202257.3
February 202257.0
March 202258.6
April 202260.1
May 202266.0
June 202267.0
July 202263.6
August 202259.5
September 202258.2
October 202258.8
November 202261.1
December 202262.3
January 202362.1
February 202361.7
March 202361.5
April 202360.3
May 202358.9
June 202359.3
July 202359.1
August 202358.5
September 202358.2
October 202359.0
November 202362.1
December 202361.7
January 202462.8
February 202465.3
March 202467.2
April 202467.0
May 202467.5
June 202467.0
July 202465.2
August 202461.6
September 202458.6
October 202458.4
November 202466.4
December 202467.0
January 202565.7
February 202564.4
March 202563.2
April 202563.7
May 202567.8
June 202567.3
July 202565.5
August 202561.9
September 202559.1
October 202557.9
November 202557.2
December 202556.5
January 202656.7
February 202657.1
March 202657.3
April 202657.9
May 202657.5
June 202657.8
July 202657.6
August 202655.7

Rate and persistence

-0.52 Mm³
Mean drawdown per month over 12 months
10 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 Lawtonka Near Lawton, OK
Gauge location
Lake Lawtonka Near Lawton, OKLake Lawtonka Near Lawton, OK — 55.65 Mm³Lake Lawtonka Near Lawton, OK — 55.65 Mm³

Where this comes from

275 monthly observations 1994–2026 Mm³
Spatially aggregatedHigh confidenceAugust 2026

Source: USGS — National Water Information System, 07309500. 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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