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USGS Surface-Water Monthly Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 11264500 MERCED R A HAPPY ISLES BRIDGE NR YOSEMITE CA


Mariposa County, California
Hydrologic Unit Code 18040008
Latitude  37°43'53", Longitude 119°33'29" NAD27
Drainage area 181  square miles
Gage datum 4,030 feet above NGVD29
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00060, Discharge, cubic feet per second,
YEAR Monthly mean in ft3/s   (Calculation Period: 1915-08-01 -> 2017-04-30)

Period-of-record for statistical calculation restricted by user
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1915 94.74711.58.1126
1916 78112.1336.5961.51,4161,691690.6148.447.4175.759.649.6
1917 36.766.4117.8462.9974.22,050666153.5511916.116.3
1918 1332116.8487.69161,925273.955.5145.2266.769.370.5
1919 3656.1100576.31,811497.7137.432.813.319.911.928.7
1920 3232.195314.81,294907.9215.665.632.376.894.979.4
1921 98.9138.6300.3588.11,1671,619490.475.525.612.612.121.4
1922 5053.789.1320.21,6882,129724.5142.941.122.838.368.7
1923 78.983.4160406.11,4431,117584.8117.38591.840.920.7
1924 23.34249.4311.4657.4119.635.211.35.4712.672.880.4
1925 70145.3259.6617.61,5431,297484.415421.340.736.344.9
1926 21.954.5194.31,0071,152463.8124.615.93.483.2652.484.1
1927 66.1137.6229.6561.91,4211,623489.887.725.335.3161.757.4
1928 58.966.2270.8491.71,450671.9149.532.55.492.9810.914.7
1929 20.424.4108.3233.71,089695.6185.737.611.76.264.9814.5
1930 1862.5159.8537.4716.8963.2178.932.58.113.215.611.5
1931 11.625.284.9386.6654.3183.528.611.65.583.536.0216.5
1932 41.5116.1240.4512.51,3461,77157989.717.97.854.896.92
1933 11.625.370.4372.8600.71,272248.538.65.722.666.4827.6
1934 43.470.3240.4563.3493.1300.974.422.611.328.372.655.5
1935 70.3126.3140.2644.21,3461,748447.597.222.517.315.412.6
1936 41.987.2268.9897.61,5811,310480.774.316.913.211.424.5
1937 27.4107.7155.4487.71,8781,391385.453.39.625.6111.5382.6
1938 80.6113.7185.3665.31,9542,6361,210276.7108.5104.67245
1939 4050183.2727.1668.4304.7100.634.730.9112.928.718.2
1940 92.1112290.4683.11,7311,283267.349.311.15.8212.549.2
1941 71.4103.7209.4330.51,8151,9101,025210.231.414.775.1177.1
1942 137.6118.9172.2567.11,1361,929891176.929.312.156.471.5
1943 114.2134.6265.8846.51,5331,148558111.928.216.116.419.7
1944 29.644129.5277.91,262942.6425.173.918.57.5370.382.3
1945 68.6193.6127.3601.31,2631,490601.7144.229.7146.6178.4165.8
1946 148.9103227.2861.11,6361,131363.579.537.588.278.7117.9
1947 82.6105193.3516.81,279460.410628.310.366.749.720.4
1948 4430.155.3276.31,3291,547334.140.78.977.410.512.8
1949 17.125.455.8653.71,280895.9160.432.66.124.9818.816.3
1950 39.495.4142.8762.61,283952.321632.814.816817.9649.4
1951 207.8200.6225.9637.31,1411,10734352.58.815.621.165.6
1952 73.388139.27782,0751,764992.7234.356.119.313.134.2
1953 95.987129.5527.8549.31,092525.364.716.68.0214.321
1954 1470.6189.5692.51,310604173.325.45.082.9413.242.5
1955 44.661.199.8268.61,0031,090215.5315.52.589.11606.2
1956 321.8185.7313.2651.11,5292,1511,094225.374.348.654.132.2
1957 26.193.6137.5363.38561,424257.855.413.520.634.443
1958 3791.3100.1457.32,0731,891893.6310.1107.622.614.913.2
1959 38.468.4172.3568656.7480.780.618.9110.33310.57.64
1960 11.247.7164.6540.6828.7590.7103.619.84.916.8324.636.8
1961 19.948.688.2427.8608.4484.879.450.716.510.512.530
1962 31.7108.6104.8918.89891,537501.290.722.43615.617.2
1963 51.6385.2143235.81,2261,602707.9149.547.327.7115.877.8
1964 43.248.976.4336.1808.4635.4162.94411.44.5467.7735.9
1965 283.6188.9211.7516.71,2091,543897.8364.261.219.291.980.5
1966 69.665.1225.2818.81,198440.2118.463.68.444.8649.5234.2
1967 94.3142.9273.2212.81,4522,3311,745395.5108.427.919.940.9
1968 40.6110.3137.6432.7784.6452.684.826.56.7611.5109.261.2
1969 193.8126.9177.1780.62,6752,2701,09623854.757.162.975.7
1970 216.3149.7220.9355.31,2561,056322.155.111.13.8543.5104.6
1971 135144.6164.7382.9900.31,36744285.224.311.940.358.3
1972 67.176.1350.53551,065895.614527.8128.751.764.4105.1
1973 109.7114.1121.3524.42,0861,513306.1146.413.224.9273.8150.4
1974 191.1115.1246.24531,7751,621407.1153.821.211.31929.4
1975 49.570.8124.3173.51,5162,053519.282.441.5117.686.441.2
1976 21.43384.4209.1678.5169.458.838.779.329.79.724.49
1977 6.713.525.2218230.9419.153.97.793.182.617.462.6
1978 101.2106.1276.8427.51,6772,4071,135330.6359.930.825.438.4
1979 13994.4197.3424.91,7891,139277.159.713.241.356.659.7
1980 366.3270.4204.7667.11,3661,8671,175217.751.123.622.127
1981 2381.8103.9600.61,051664.511224.911.728.1163.3161.9
1982 153.9360253.69821,9731,8881,086347.5280.4232.8197.7175.9
1983 167.5191.3242.3252.11,6943,3172,101775.5243.5135.2271.6286.7
1984 217.2178.1308.7545.41,7291,004485144.768.660.6107.277.1
1985 68.284125.9704.1973.8480.7125.942.746.474.256.5101.6
1986 135.4400.8575.1815.71,7521,840525.4150.746.831.513.712.3
1987 14.934.176.3549.4734324.372.324.211.935.3108.763.4
1988 87.7118.7231.9445.3732.5463142.342.220.25.8515.828
1989 43.265.2290.3801.9896.4658136.338.353.763.451.642.5
1990 31.551.6183.9539.9517384187.525.56.725.275.385.75
1991 6.568.8998.6300.9883.81,104276.731.414.514.563.330.7
1992 37.478.2133.8661.2780.9304.8240.542.79.5711.443.738.5
1993 141.1130.1447.8662.31,9331,835869.1188.147.816.912.618.9
1994 18.130.4128.1440.9771420.372.115.95.1162115.197.1
1995 164.9206411.5627.91,4282,6782,393602150.332.91778
1996 111349.9358.5791.81,5891,287492.4120.331.315.6176.3209.1
1997 1,084239.2432.4789.91,6791,023339108.636.215.318.936.4
1998 83.2123.7280.7501.6911.72,5382,009399187.441.950.473.6
1999 71.6131.6171.5434.41,4931,100262.965.930.114.119.813.1
2000 33.794.9206.16631,5121,120211.162.525.512.222.717.2
2001 17.144.6248.2500.51,441303.59319.88.224.647.294.3
2002 108.7123.8188.2796.91,190861.514419.68.374.52109.249.6
2003 119.7126.8220.93861,4961,457272.977.727.46.4914.968.8
2004 85.793.6524.1691.8885.7523.1140.927.16.2240.193.871.8
2005 146.9162.1286.9560.92,3062,0591,098176.334.519.628.2177.7
2006 225.5213.2220.4631.82,4762,472972.9152.543.419.622.429.9
2007 37.770.2268.1492.6762231.259.916.1158.468.2813.5
2008 40.178.2219.9539.31,203845.3230.224.25.616.8314748.5
2009 138.1138.8295.5768.31,738766286.147.813.8102.730.736.1
2010 73.998199.2445946.42,03664676.916.5226.7171.5271.5
2011 222.9196.3259.5785.11,5622,4581,509332.4101.412137.720.5
2012 29.247.3118.7699.6885.6246.462.149.710.96.0928.8138
2013 102.191.3226.7678.9783.3342.281.217.99.9610.511.815
2014 10.953.6149.2497.5685.5262.273.918.43.653.2610.636.4
2015 29126123196352.2218.9106.324.44.8238.49270.4
2016 103.8239.7454.5880.71,1811,137206.2316.9230.2139.1204.2
2017 458.7573.55851,109
Mean of
monthly
Discharge
95 115 204 555 1,260 1,200 465 108 41 39 61 83

** Incomplete data have been used for statistical calculation