HydrionisGlobal Water Intelligence
Monitored reservoir

Marlette Lake Nr Carson City, NV

United States Geological Survey reservoir gauge 10336710 in NV, with published storage from 1974.

Storage record10336710

Storage now, against this reservoir's own record

6.19 Mm³
Stored, September 2026
2nd
Percentile among 53 Seps on record
-56.0%
Against the Sep 1991–2020 average
+32.2%
Change over the 12 months to 2026-09

Storage in September 2026 was lower than almost every other Sep on record, ranked against 53 other Seps held for this reservoir.

Storage, 1974–2026

Monthly mean storage
623 monthly values, 1974 to 2026
Monthly mean storageMonthly mean storage: Marlette Lake Nr Carson City, NV in Mm³, from 1974.0833333333333 to 2026.6666666666667.05101520Mm³1974.08333333333331980.83333333333331987.33333333333331993.83333333333332000.520072013.58333333333332020.3333333333333Year

Monthly means of the publisher's daily record. Volume, not percentage of capacity — see below for why.

What the shaded periods are (0 events)

Not shown on this chart

  • The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
  • The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
  • Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
  • Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
  • Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
  • European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
View the data behind this chart
240 of 623 periods, evenly spaced across the record. Every value is in the download and the API; a table of all 623 would be longer than this page and unusable with a screen reader.
PeriodMarlette Lake Nr Carson City, NV (Mm³)
February 197414.1
July 197414.4
September 197414.3
January 197514.0
March 197514.0
June 197514.3
September 197514.4
November 197514.4
February 197614.0
April 197613.6
July 197613.6
October 197613.6
December 197613.6
March 197714.1
May 197714.5
August 197714.3
November 197714.0
January 197814.6
April 197814.4
June 197814.8
September 197814.4
December 197814.6
February 197914.8
May 197914.9
July 197914.6
October 197914.3
January 198014.8
March 198014.8
June 198014.9
August 198014.6
November 198014.6
February 198114.8
April 198114.8
July 198114.4
September 198113.8
December 198114.3
March 198214.7
May 198214.8
August 198214.7
October 198214.7
January 198314.7
April 198314.7
June 198315.0
September 198314.7
December 198314.8
February 198414.7
May 198414.8
July 198414.6
October 198414.6
January 198514.6
March 198514.7
June 198514.6
August 198514.4
November 198514.5
February 198614.8
April 198614.8
July 198614.7
September 198614.6
December 198614.7
March 198714.7
May 198714.7
August 198714.3
October 198714.1
January 198814.4
April 198814.7
June 198814.6
September 198814.0
November 198813.8
February 198914.5
May 198914.7
July 198914.5
October 198914.2
December 198914.3
March 199014.7
June 199014.6
August 199014.1
November 199013.6
January 199113.6
April 199114.3
July 199114.5
September 199114.0
December 199113.9
February 199213.8
May 199214.5
August 199214.1
October 199213.5
January 199314.3
March 199314.7
June 199314.7
September 199314.3
November 199314.4
February 199414.7
April 199414.7
July 199414.3
October 199413.6
December 199414.0
March 199514.8
May 199514.8
August 199514.6
November 199514.6
January 199614.7
April 199614.7
June 199614.7
September 199614.5
December 199614.8
February 199714.7
May 199714.8
July 199714.7
October 199714.6
January 199814.7
March 199814.7
June 199814.9
August 199814.7
November 199814.7
April 199914.7
June 199914.9
September 199914.6
November 199914.6
February 200014.9
May 200014.9
July 200014.6
October 200014.3
January 200114.7
March 200114.8
June 200114.5
August 200114.0
November 200113.6
February 200214.4
April 200214.7
July 200214.5
September 200213.8
December 200213.8
March 200314.4
May 200314.7
August 200314.3
October 200313.8
January 200414.3
April 200414.7
June 200414.6
September 200413.7
November 200413.7
February 200514.5
May 200514.8
July 200514.7
October 200514.1
December 200514.5
March 200614.8
June 200614.8
August 200614.6
November 200614.6
January 200714.7
April 200714.7
July 200714.5
September 200714.1
December 200714.1
March 200814.6
June 200814.7
September 200814.1
November 200814.0
February 200914.4
April 200914.6
July 200914.5
October 200913.8
December 200913.9
March 201014.6
May 201014.8
August 201014.2
November 201014.0
January 201114.7
April 201114.7
June 201114.9
September 201114.6
December 201114.6
February 201214.7
May 201214.7
July 201214.2
October 201213.2
January 201313.9
March 201314.1
June 201314.5
August 201313.9
November 201313.2
February 201413.7
April 201414.2
July 201414.1
September 201413.4
December 201413.3
March 201513.7
May 201513.9
August 201513.3
October 201513.0
January 201613.5
April 201614.4
June 201614.6
September 201613.6
November 201613.5
May 201712.6
August 201714.6
October 201714.0
January 201814.3
April 201814.8
June 201814.7
September 201814.2
November 201814.1
February 201914.8
May 201914.9
July 201914.7
October 201914.0
December 201914.3
March 202014.7
June 202015.0
August 202014.2
November 202013.3
January 202113.6
April 202114.2
July 202114.0
September 202113.1
December 202113.1
February 202213.5
May 202214.1
August 202213.5
October 202213.0
January 202314.0
March 202314.2
June 202312.8
September 202313.4
November 202313.5
February 202414.3
April 202414.7
July 202414.5
October 202414.1
December 202414.4
March 20259.75
May 20255.17
August 20254.72
November 20254.92
January 20265.55
April 20266.38
June 20266.54
September 20266.19

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 12.051015Mm³123456789101112Month1991–2020 average 1: 14.3 Mm³1991–2020 average 2: 14.5 Mm³1991–2020 average 3: 14.5 Mm³1991–2020 average 4: 14.6 Mm³1991–2020 average 5: 14.7 Mm³1991–2020 average 6: 14.7 Mm³1991–2020 average 7: 14.5 Mm³1991–2020 average 8: 14.3 Mm³1991–2020 average 9: 14.1 Mm³1991–2020 average 10: 13.9 Mm³1991–2020 average 11: 13.9 Mm³1991–2020 average 12: 14.1 Mm³Most recent 12 months 1: 5.55 Mm³Most recent 12 months 2: 5.74 Mm³Most recent 12 months 3: 6.05 Mm³Most recent 12 months 4: 6.38 Mm³Most recent 12 months 5: 6.56 Mm³Most recent 12 months 6: 6.54 Mm³Most recent 12 months 7: 6.44 Mm³Most recent 12 months 8: 6.31 Mm³Most recent 12 months 9: 6.19 Mm³Most recent 12 months 10: 4.74 Mm³Most recent 12 months 11: 4.92 Mm³Most recent 12 months 12: 5.16 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)
Jan14.35.55
Feb14.55.74
Mar14.56.05
Apr14.66.38
May14.76.56
Jun14.76.54
Jul14.56.44
Aug14.36.31
Sep14.16.19
Oct13.94.74
Nov13.94.92
Dec14.15.16

Why this page shows a volume and not a percentage

Rate and persistence

+0.13 Mm³
Mean change per month over 12 months
20 of 24
Recent months 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

Marlette Lake Nr Carson City, NV
Gauge location
Marlette Lake Nr Carson City, NVMarlette Lake Nr Carson City, NV — 6.19 Mm³Marlette Lake Nr Carson City, NV — 6.19 Mm³

About this data

About this data

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source
United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to existMeasured
Period held1974–2026
Completeness98.0% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • Storage is a managed quantity. A falling line can be a rule curve, a scheduled release or a transfer to another system rather than a shortage of water, and nothing here distinguishes them.
  • No capacity figure on a stated basis is held for this reservoir, so no percentage of capacity is computed.
Continuity98% of the months between 1974 and 2026 are held. Monthly means of the publisher's own daily record.
Last read from the publisher2026-10-01
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow this was produced

Use this data

Use this data

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Marlette Lake Nr Carson City, NV reservoir records, accessed 2026-10-05, hydrionis.com/reservoirs/reservoir-usgs-10336710/

Cite Hydrionis where you rely on the compilation, the normalisation, the eligibility judgements or a chart. Where you use an unmodified published value, the publisher’s attribution is the one that is required; crediting Hydrionis as well is welcome and is not something Hydrionis can require of you.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Marlette Lake Nr Carson City, NV record changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where this comes from

623 monthly observations 1974–2026 Mm³
Spatially aggregatedHigh confidenceSeptember 2026

Source: USGS — National Water Information System, 10336710. 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 1 October 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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