Lk Brownwood, TX — storage

Storage now, against this reservoir's own record

177.26 Mm³

Stored, September 1986

98th

Percentile among 49 Seps on record

+30.5%

Change over the 12 months to 1986-09

Storage in September 1986 was higher than almost every other Sep on record, ranked against 49 other Seps held for this reservoir.

Storage, 1933–1986

Monthly mean storage

581 monthly values, 1933 to 1986

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
Period	Lk Brownwood Nr Brownwood, TX (Mm³)
July 1933	65.1
August 1933	61.7
September 1933	59.9
October 1933	53.0
November 1933	55.5
December 1933	54.0
January 1934	54.7
February 1934	54.3
March 1934	55.6
April 1934	79.2
May 1934	92.7
June 1934	90.5
April 1935	32.7
May 1935	107
June 1935	174
July 1935	170
August 1935	149
September 1935	180
October 1935	165
November 1935	147
December 1935	133
January 1936	130
February 1936	128
March 1936	127
April 1936	128
May 1936	138
June 1936	155
July 1936	172
August 1936	158
September 1936	169
October 1936	183
November 1936	169
December 1936	151
January 1937	137
February 1937	130
March 1937	130
April 1937	129
May 1937	126
June 1937	147
July 1937	149
August 1937	144
September 1937	142
October 1937	140
November 1937	139
December 1937	139
January 1938	142
February 1938	142
March 1938	140
April 1938	141
May 1938	132
June 1938	135
July 1938	151
August 1938	174
September 1938	151
October 1938	151
November 1938	148
December 1938	145
January 1939	151
February 1939	153
March 1939	150
April 1939	150
May 1939	173
June 1939	186
July 1939	172
August 1939	169
September 1939	152
October 1939	139
November 1939	135
December 1939	135
January 1940	133
February 1940	132
March 1940	131
April 1940	155
May 1940	167
June 1940	181
July 1940	181
August 1940	180
September 1940	165
November 1944	166
December 1944	161
January 1945	168
February 1945	176
March 1945	180
April 1945	180
May 1945	172
June 1945	167
July 1945	182
August 1945	171
September 1945	162
October 1945	160
November 1945	156
December 1945	152
January 1946	151
February 1946	151
March 1946	154
April 1946	157
May 1946	160
June 1946	160
July 1946	158
August 1946	154
September 1946	161
October 1946	175
November 1946	184
December 1946	175
January 1947	175
February 1947	171
March 1947	160
April 1947	158
May 1947	161
June 1947	159
July 1947	149
August 1947	136
September 1947	128
October 1947	120
November 1947	117
December 1947	141
January 1948	146
February 1948	143
March 1948	142
April 1948	138
May 1948	138
June 1948	135
July 1948	144
August 1948	140
September 1948	137
October 1948	134
November 1948	131
December 1948	127
January 1949	125
February 1949	128
March 1949	134
April 1949	140
May 1949	167
June 1949	167
July 1949	156
August 1949	150
September 1949	145
October 1949	145
November 1949	151
December 1949	146
January 1950	145
February 1950	144
March 1950	142
April 1950	136
May 1950	139
June 1950	147
July 1950	144
August 1950	142
September 1950	139
October 1950	135
November 1950	128
December 1950	124
January 1951	121
February 1951	118
March 1951	116
April 1951	111
May 1951	122
June 1951	172
July 1951	158
August 1951	148
September 1951	140
October 1951	134
November 1951	130
December 1951	126
January 1952	123
February 1952	120
March 1952	117
April 1952	115
May 1952	128
June 1952	149
July 1952	142
August 1952	131
September 1952	123
October 1952	118
November 1952	114
December 1952	115
January 1953	116
February 1953	114
March 1953	115
April 1953	114
May 1953	145
June 1953	156
July 1953	163
August 1953	165
September 1953	165
October 1953	167
November 1953	163
December 1953	159
January 1954	156
February 1954	153
March 1954	149
April 1954	162
May 1954	171
June 1954	164
July 1954	152
August 1954	141
September 1954	132
October 1954	126
November 1954	124
December 1954	122
January 1955	120
February 1955	120
March 1955	119
April 1955	118
May 1955	135
June 1955	169
July 1955	168
August 1955	162
September 1955	161
October 1955	165
November 1955	155
December 1955	151
January 1956	147
February 1956	147
March 1956	144
April 1956	142
May 1956	173
June 1956	155
July 1956	144
August 1956	133
September 1956	125
October 1956	119
November 1956	118
December 1956	115
January 1957	114
February 1957	113
March 1957	111
April 1957	121
May 1957	183
June 1957	171
July 1957	155
August 1957	147
September 1957	141
October 1957	157
November 1957	157
December 1957	143
January 1958	141
February 1958	142
March 1958	144
April 1958	142
May 1958	156
June 1958	152
July 1958	144
August 1958	132
September 1958	131
October 1958	134
November 1958	130
December 1958	127
January 1959	125
February 1959	122
March 1959	119
April 1959	115
May 1959	114
June 1959	129
July 1959	153
August 1959	160
September 1959	152
October 1959	172
November 1959	168
December 1959	167
January 1960	175
February 1960	169
March 1960	165
April 1960	165
May 1960	163
June 1960	150
July 1960	141
August 1960	135
September 1960	130
October 1960	130
November 1960	131
December 1960	129
January 1961	147
February 1961	165
March 1961	159
April 1961	154
May 1961	150
June 1961	177
July 1961	167
August 1961	154
September 1961	156
October 1961	160
November 1961	160
December 1961	160
January 1962	158
February 1962	155
March 1962	152
April 1962	150
May 1962	148
June 1962	156
July 1962	170
August 1962	164
September 1962	167
October 1962	164
November 1962	163
December 1962	161
January 1963	158
February 1963	156
March 1963	152
April 1963	148
May 1963	152
June 1963	176
July 1963	157
August 1963	146
September 1963	139
October 1963	132
November 1963	130
December 1963	129
January 1964	127
February 1964	129
March 1964	128
April 1964	142
May 1964	168
June 1964	160
July 1964	149
August 1964	140
September 1964	146
October 1964	165
November 1964	172
December 1964	167
January 1965	165
February 1965	166
March 1965	166
April 1965	163
May 1965	179
June 1965	169
July 1965	157
August 1965	147
September 1965	140
October 1965	139
November 1965	143
December 1965	143
January 1966	140
February 1966	139
March 1966	136
April 1966	134
May 1966	176
June 1966	168
July 1966	163
August 1966	155
September 1966	172
October 1966	166
November 1966	161
December 1966	156
January 1967	152
February 1967	149
March 1967	147
April 1967	144
May 1967	144
June 1967	144
July 1967	143
August 1967	135
September 1967	140
October 1967	148
November 1967	145
December 1967	144
January 1968	163
February 1968	178
March 1968	181
April 1968	180
May 1968	183
June 1968	177
July 1968	166
August 1968	158
September 1968	151
October 1968	146
November 1968	142
December 1968	141
January 1969	139
February 1969	137
March 1969	137
April 1969	145
May 1969	175
June 1969	178
July 1969	169
August 1969	161
September 1969	170
October 1969	177
November 1969	176
December 1969	178
January 1970	179
February 1970	178
March 1970	180
April 1970	170
May 1970	172
June 1970	174
July 1970	159
August 1970	148
September 1970	144
October 1970	140
November 1970	137
December 1970	133
January 1971	130
February 1971	127
March 1971	123
April 1971	118
May 1971	112
June 1971	110
July 1971	103
August 1971	140
September 1971	169
October 1971	182
November 1971	177
December 1971	178
January 1972	177
February 1972	175
March 1972	168
April 1972	163
May 1972	163
June 1972	157
July 1972	151
August 1972	145
September 1972	141
October 1972	136
November 1972	134
December 1972	130
January 1973	130
February 1973	130
March 1973	130
April 1973	132
May 1973	140
June 1973	138
July 1973	132
August 1973	128
September 1973	122
October 1973	134
November 1973	141
December 1973	138
January 1974	134
February 1974	132
March 1974	128
April 1974	122
May 1974	121
June 1974	117
July 1974	108
August 1974	105
September 1974	131
October 1974	183
November 1974	183
December 1974	178
January 1975	178
February 1975	182
March 1975	177
April 1975	178
May 1975	178
June 1975	177
July 1975	172
August 1975	167
September 1975	159
October 1975	153
November 1975	150
December 1975	146
January 1976	143
February 1976	140
March 1976	136
April 1976	132
May 1976	132
June 1976	127
July 1976	123
August 1976	117
September 1976	113
October 1976	110
November 1976	113
December 1976	111
January 1977	109
February 1977	108
March 1977	108
April 1977	124
May 1977	138
June 1977	132
July 1977	124
August 1977	116
September 1977	109
October 1977	103
November 1977	99.8
December 1977	97.0
January 1978	94.5
February 1978	93.6
March 1978	92.3
April 1978	90.0
May 1978	85.4
June 1978	81.7
July 1978	75.9
August 1978	154
September 1978	172
October 1978	167
November 1978	163
December 1978	159
January 1979	157
February 1979	157
March 1979	162
April 1979	178
May 1979	178
June 1979	177
July 1979	176
August 1979	173
September 1979	170
October 1979	162
November 1979	156
December 1979	153
January 1980	152
February 1980	151
March 1980	148
April 1980	145
May 1980	148
June 1980	154
July 1980	146
August 1980	135
September 1980	129
October 1980	132
November 1980	129
December 1980	129
January 1981	128
February 1981	126
March 1981	136
April 1981	136
May 1981	135
June 1981	141
July 1981	139
August 1981	129
September 1981	123
October 1981	157
November 1981	179
December 1981	175
January 1982	172
February 1982	170
March 1982	170
April 1982	168
May 1982	175
June 1982	184
July 1982	178
August 1982	167
September 1982	158
October 1982	151
November 1982	147
December 1982	145
January 1983	145
February 1983	143
March 1983	145
April 1983	145
May 1983	142
June 1983	152
July 1983	154
August 1983	146
September 1983	137
October 1983	133
November 1983	131
December 1983	127
January 1984	124
February 1984	124
March 1984	123
April 1984	125
May 1984	118
June 1984	121
July 1984	116
August 1984	108
September 1984	103
October 1984	105
November 1984	118
December 1984	119
January 1985	151
February 1985	151
March 1985	153
April 1985	158
May 1985	155
June 1985	155
July 1985	151
August 1985	144
September 1985	136
October 1985	139
November 1985	144
December 1985	141
January 1986	138
February 1986	141
March 1986	138
April 1986	135
May 1986	148
June 1986	184
July 1986	172
August 1986	165
September 1986	177

Rate and persistence

+3.45 Mm³

Mean change per month over 12 months

3 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

Lk Brownwood Nr Brownwood, TX

Gauge location

Where this comes from

581 monthly observations 1933–1986 Mm³

Spatially aggregatedHigh confidenceSeptember 1986

Source: USGS — National Water Information System, 08143000. 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.