HydrionisGlobal Water Intelligence
Monitored reservoir

Lake Maloya Nr Raton NM

United States Geological Survey reservoir gauge 07199450 in NM, with published storage from 1987.

Storage record07199450

Storage now, against this reservoir's own record

4.21 Mm³
Stored, September 2026
45th
Percentile among 39 Seps on record
+0.2%
Against the Sep 1991–2020 average
-6.7%
Change over the 12 months to 2026-09

Storage in September 2026 was around the middle of the Sep record, ranked against 39 other Seps held for this reservoir.

Storage, 1987–2026

Monthly mean storage
467 monthly values, 1987 to 2026
Monthly mean storageMonthly mean storage: Lake Maloya Nr Raton NM in Mm³, from 1987.75 to 2026.6666666666667.024Mm³1987.751992.66666666666671997.58333333333332002.52007.41666666666672012.33333333333332017.33333333333332022.25Year

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 467 periods, evenly spaced across the record. Every value is in the download and the API; a table of all 467 would be longer than this page and unusable with a screen reader.
PeriodLake Maloya Nr Raton NM (Mm³)
October 19874.27
December 19874.32
February 19884.40
April 19884.59
June 19884.59
August 19884.48
October 19884.39
December 19884.36
February 19894.28
April 19894.53
May 19894.49
July 19894.31
September 19893.74
November 19893.67
January 19903.47
March 19903.65
May 19904.41
July 19903.50
September 19903.03
November 19902.87
January 19912.76
March 19912.77
May 19912.97
July 19912.90
September 19912.87
November 19912.82
January 19923.05
March 19923.81
May 19923.99
July 19924.57
August 19924.56
October 19924.50
December 19924.54
February 19934.51
April 19934.66
June 19934.58
August 19934.49
October 19934.49
December 19934.46
February 19944.43
April 19944.61
June 19944.55
August 19944.19
October 19943.96
December 19943.96
February 19954.05
April 19954.43
June 19954.61
August 19954.56
October 19954.56
November 19954.56
January 19964.56
March 19964.57
May 19964.48
July 19964.37
September 19964.26
November 19964.20
January 19974.10
March 19974.47
May 19974.60
July 19974.45
September 19974.43
November 19974.52
January 19984.57
March 19984.61
May 19984.62
July 19984.34
September 19984.15
November 19984.17
January 19994.02
February 19994.14
April 19994.56
June 19994.55
August 19994.37
October 19994.37
December 19994.54
February 20004.57
April 20004.59
June 20004.40
August 20004.05
October 20003.97
December 20004.19
February 20014.08
April 20014.55
June 20014.32
August 20014.09
October 20014.00
December 20014.06
February 20024.00
April 20024.04
May 20024.04
July 20023.96
September 20023.92
November 20024.00
January 20034.06
March 20034.24
May 20034.54
July 20034.38
September 20034.30
November 20034.29
January 20044.21
March 20044.19
May 20044.51
July 20044.46
September 20044.47
November 20044.56
January 20054.57
March 20054.59
May 20054.63
July 20054.56
August 20054.55
October 20054.56
December 20054.53
February 20064.54
April 20064.51
June 20064.31
August 20064.16
October 20064.26
December 20064.26
February 20074.42
April 20074.60
June 20074.56
August 20074.52
October 20074.47
December 20074.40
February 20084.37
April 20084.58
June 20084.52
August 20084.32
October 20084.33
November 20084.51
January 20094.55
March 20094.56
May 20094.56
July 20094.51
September 20094.30
November 20094.29
January 20104.23
March 20104.40
May 20104.58
July 20104.43
September 20104.31
November 20104.18
January 20114.10
March 20114.10
May 20114.08
July 20113.87
September 20113.98
November 20113.97
January 20124.08
February 20124.21
April 20124.58
June 20124.44
August 20123.99
October 20123.83
December 20123.79
February 20133.85
April 20134.08
June 20134.07
August 20134.13
October 20134.10
December 20133.99
February 20143.95
April 20144.12
June 20144.34
August 20144.20
October 20144.10
December 20144.06
February 20154.13
April 20154.58
May 20154.63
July 20154.56
September 20154.49
November 20154.55
January 20164.55
March 20164.58
May 20164.59
July 20164.50
September 20164.40
November 20164.22
February 20174.19
April 20174.52
June 20174.56
August 20174.57
October 20174.57
December 20174.50
February 20184.52
April 20184.41
June 20184.22
August 20183.90
September 20183.79
November 20183.68
January 20193.84
March 20194.37
May 20194.59
July 20194.51
September 20194.20
November 20194.01
January 20204.12
March 20204.27
May 20204.20
July 20204.01
September 20203.83
November 20203.76
January 20213.86
March 20214.00
May 20214.50
July 20214.51
September 20214.34
November 20214.13
December 20214.13
February 20224.23
April 20224.53
June 20224.44
August 20224.29
October 20224.11
December 20224.10
February 20234.16
April 20234.35
June 20234.56
August 20234.41
October 20234.27
December 20234.33
February 20244.52
April 20244.57
June 20244.54
August 20244.26
October 20244.13
December 20244.48
February 20254.53
March 20254.56
May 20254.58
July 20254.54
September 20254.51
November 20254.53
January 20264.49
March 20264.49
May 20264.50
July 20264.40
September 20264.21

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 12.024Mm³123456789101112Month1991–2020 average 1: 4.16 Mm³1991–2020 average 2: 4.18 Mm³1991–2020 average 3: 4.30 Mm³1991–2020 average 4: 4.45 Mm³1991–2020 average 5: 4.42 Mm³1991–2020 average 6: 4.38 Mm³1991–2020 average 7: 4.29 Mm³1991–2020 average 8: 4.24 Mm³1991–2020 average 9: 4.20 Mm³1991–2020 average 10: 4.17 Mm³1991–2020 average 11: 4.19 Mm³1991–2020 average 12: 4.19 Mm³Most recent 12 months 1: 4.49 Mm³Most recent 12 months 2: 4.49 Mm³Most recent 12 months 3: 4.49 Mm³Most recent 12 months 4: 4.49 Mm³Most recent 12 months 5: 4.50 Mm³Most recent 12 months 6: 4.50 Mm³Most recent 12 months 7: 4.40 Mm³Most recent 12 months 8: 4.30 Mm³Most recent 12 months 9: 4.21 Mm³Most recent 12 months 10: 4.52 Mm³Most recent 12 months 11: 4.53 Mm³Most recent 12 months 12: 4.51 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)
Jan4.164.49
Feb4.184.49
Mar4.304.49
Apr4.454.49
May4.424.50
Jun4.384.50
Jul4.294.40
Aug4.244.30
Sep4.204.21
Oct4.174.52
Nov4.194.53
Dec4.194.51

Why this page shows a volume and not a percentage

Rate and persistence

-0.02 Mm³
Mean drawdown per month over 12 months
0 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

Lake Maloya Nr Raton NM
Gauge location
Lake Maloya Nr Raton NMLake Maloya Nr Raton NM — 4.21 Mm³Lake Maloya Nr Raton NM — 4.21 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 held1987–2026
Completeness97.3% 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.
Continuity97% of the months between 1987 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), Lake Maloya Nr Raton NM reservoir records, accessed 2026-10-05, hydrionis.com/reservoirs/reservoir-usgs-07199450/

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 Lake Maloya Nr Raton NM 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

467 monthly observations 1987–2026 Mm³
Spatially aggregatedHigh confidenceSeptember 2026

Source: USGS — National Water Information System, 07199450. 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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