Global River Discharge Database

Results

Country: U.S.A. Station: GRAND CANYON, ARIZ. River: COLORADO R. Area: 38873598.40 Lat: 36.1 Lon: -112.08 Source: USGS PointID: 9402500 Area Units: km2 Discharge Units: m3/sec Starting Year: 1922 Ending Year: 1995 Total Years: 74 Total Usable Years: 72

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Avg Annual
1922	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	147.25	201.6	201.66	-9999
1923	184.55	188.35	229.87	621.6	1643.12	2209.48	1071.39	663.17	623.74	346.65	364.69	273.35	701.66
1924	170.1	260.51	245.04	791.7	1379.04	1500.71	483.21	154.13	131.14	174.11	193.73	138.3	468.48
1925	124.29	217.3	304.57	623.26	968.17	1140.33	684.91	369.56	568.98	481.94	295.44	212.02	499.23
1926	171.09	184.79	301.42	785.51	1555.97	1655.79	657.87	267.16	184.32	215.74	176.92	191.44	529
1927	166.41	236.04	312.14	611.18	1783.06	1742.06	1163.92	457.28	1030.93	444.39	370.58	224	711.83
1928	229.46	246.76	359.21	469.59	1966.48	1792.28	715.42	307.25	178.34	283.12	280.5	168.48	583.07
1929	161.02	184.17	437.74	842.15	1796.67	2248.65	974.29	918.66	806.66	435.81	277.66	211.77	774.6
1930	146.28	245.07	282.04	794.85	920.49	1463.89	531.99	733.32	252.41	260.6	212.17	144.04	498.93
1931	128.96	196.49	208.09	273.73	536.56	671.4	232.06	149.49	142.32	246.29	185.65	125.86	258.08
1932	141.23	359.87	390.55	820.34	1827.91	1722.52	951.73	442.56	257.29	163.26	188.35	137.68	616.94
1933	130.58	141.08	243.75	247.75	640.26	1890.63	543.73	178.02	199.21	199.08	147.25	156.38	393.14
1934	151.65	161.57	160.69	215.3	507.79	259.64	67.4	76.44	79.21	79.19	93.18	112.03	163.67
1935	132.68	156.12	174.18	348.07	626.9	1899.69	697.05	267.17	216.11	177.56	159.59	133.49	415.72
1936	128.32	163.31	232.03	624.58	1650.24	1288.52	481.31	425.55	297.05	166.96	218.2	155.74	485.98
1937	100.21	270.78	378.3	744.93	1598.45	1142.87	629.55	194.73	215.35	223.88	188.91	187.64	489.63
1938	155.73	182.62	415.04	732.44	1514.23	2226.85	807.49	250.14	446.17	273	237.45	199.01	620.01
1939	166.13	161.96	376.92	576.25	1108.93	795.61	215.53	112.44	283.11	162.94	157.89	142.51	355.02
1940	129.93	160	215.36	329.59	915.19	722.74	199.35	117.42	227.94	348.67	204.72	187.91	313.24
1941	199.72	262.39	385.86	575.5	2291.58	1950.95	807.22	396.38	313.4	876.73	453.47	273.81	732.25
1942	197.79	221.85	300.82	1315.04	1456.68	2018.34	619.32	223.81	139.74	164.04	183.6	171.82	584.4
1943	159.96	178.93	266.86	674.45	995.02	1273.42	671.94	383.83	235.16	188.1	226.79	193.29	453.98
1944	137.07	178.58	253.67	522.99	1476.41	1972.09	853.71	209.81	119.45	166.47	190.89	158.74	519.99
1945	164.02	194.06	217.15	382.8	1290.8	1310.42	797.44	493.11	187.25	241.55	221.47	165.25	472.11
1946	176.76	169.58	236.82	483.41	817.36	949.56	361.24	261.22	177.22	192.88	234.29	215.51	356.32
1947	139.59	189.24	300.89	373.73	1422.15	1538.75	899.2	612.01	304.71	411.77	289.5	225.88	558.95
1948	196.83	225.61	307.97	824.4	1562.28	1597.83	464.77	270.31	115.34	154.83	206.74	167.94	507.9
1949	167.23	190.84	366.48	636.09	1362.6	2047.6	979.86	291.06	161.94	239.79	232.08	175.46	570.92
1950	164.96	211.15	308.41	567.1	893.81	1391.97	645.26	204.38	163.27	165.4	169.01	200.03	423.73
1951	150.31	186.75	197.5	254.8	714.59	1332.5	643.25	383.45	214.99	195.67	221.57	162.72	388.17
1952	272.92	195.1	200.21	1051.41	2331.4	2475.94	732.41	383.56	283.45	180.93	188.67	184.15	706.68
1953	187.65	192.45	219.93	253.78	455.26	1395.37	451.34	323.81	138.2	149.71	203.86	165.55	344.74
1954	153.31	179.86	195.03	269.28	557.75	379.5	307.56	160.81	197.57	242.33	171.11	136.23	245.86
1955	120.2	136.99	269.8	295.64	697.88	759.27	284.66	307.47	125.91	108.9	141.61	162.78	284.26
1956	183.5	152.76	235.49	417.77	978.85	1229.52	275.29	176.41	87.95	93.14	154.68	126.31	342.64
1957	157.8	188.9	249.22	386.23	1151.86	2636.97	1857.23	769.86	420.89	360.85	424.4	247.25	737.62
1958	191.01	273.19	344.83	751.72	1796.21	1790.96	314.7	155.06	180.45	159.35	183.14	178.48	526.59
1959	153.82	166.06	167.96	201.33	465.54	858.67	366.31	224.52	128.85	243.38	270.92	181.51	285.74
1960	160.11	173.97	377.68	785.23	727.75	1052.64	312.31	107.1	103.99	175.99	180.74	138.2	357.98
1961	134.12	179.9	174.4	279.47	528.41	805.24	191.98	172.38	355.93	355.42	271.24	188.44	303.08
1962	169.74	424.27	281.01	1174.12	1711.35	1356.38	838.73	235.65	151.47	256.58	210.78	158.46	580.71
1963	83.7	190.64	93.51	34.04	36.25	70.33	49.68	51.58	57.9	35.6	36.14	35.69	64.59
1964	36.21	120.66	176.14	378.69	163.97	36.5	38.73	131.97	90.7	137.47	176.42	190.05	139.79
1965	279.78	275	261.53	595.49	1050.83	1086.05	333.63	404.8	364.93	310.84	291.39	270.93	460.43
1966	243.44	267.07	330.72	411.45	465.68	376.69	321.39	319.48	296.63	260.92	280.5	285.39	321.61
1967	298.66	287.32	324.17	381.28	396.67	338.35	319.04	362	339.25	211.4	235.62	274.99	314.06
1968	303.17	262.62	414.57	512.92	449.42	440.29	398.22	357.04	321.05	297.92	321.26	306.05	365.38
1969	289.04	259.48	334.71	441.18	367.73	413.99	457.73	461.48	400.78	304.87	357.23	383.04	372.61
1970	353.57	251.73	234.78	461	435.7	390.65	375.08	367.38	359.78	249.41	229.69	322.28	335.92
1971	250.44	219.2	296.85	475.93	429.78	426.42	429.5	429.29	381.03	311.07	374.2	457.79	373.46
1972	386.97	232.02	167.46	377.61	420.08	423.7	401.32	458.89	449.6	422.27	347.32	492.55	381.65
1973	566.88	427.87	554.78	911.71	389.5	366.95	308.92	269.77	213.89	237.53	211.75	163.16	385.23
1974	403.67	166.44	199.74	241.08	375.72	443.7	568.72	565.79	394.29	280.46	352.34	268.12	355.01
1975	370.01	288.33	252.46	240.01	420.91	473.55	573.83	473.81	472.03	298.71	210.04	241.18	359.57
1976	330.82	377.8	327.91	330.2	496.83	361.56	371.47	332.72	410.22	377.05	429.64	381.66	377.32
1977	468.77	248.31	226.48	90.03	101.38	224.63	408.86	573.37	464.3	192.9	184.27	370.24	296.13
1978	428.33	301.62	319.6	229.07	267.34	364.53	321.06	502.86	482.8	325.65	343.36	485.5	364.31
1979	486.8	423.5	146.46	237.99	277.22	300.66	394.99	496.83	337.49	284.97	387.07	312.67	340.55
1980	276.21	411.6	309.03	459.09	408.76	696.43	719.34	609.64	485.26	352.25	440.07	344.54	459.35
1981	330.11	314.12	219.79	229.14	250.1	247.45	388.05	417.26	324.74	304.94	283.59	403.92	309.43
1982	423.9	375.02	270.26	313.39	296.08	307.82	380.32	444.42	319.43	346.35	448.07	455.23	365.02
1983	417.61	453.75	348.9	468.22	604.25	1582.54	1572.96	841.93	750.31	745.1	686.69	685.27	763.13
1984	677.6	694.25	693.49	725.67	1157.62	1199.79	1002.51	743.37	699.71	634.88	706.89	704.45	803.35
1985	732.68	770.93	619.69	595.32	957.94	1135.79	801.01	741.17	669.51	346.27	354.14	326.04	670.87
1986	479.48	615.49	730.94	848.85	1268.51	1001.19	607.81	727.84	788.82	535.1	594.75	713.31	742.67
1987	743.55	587.88	386.77	394.87	362.26	484.69	520.39	620.87	474.69	258.88	374.28	384.38	466.13
1988	396.01	407.39	336.73	296.71	268.37	259.1	336.63	369.98	342.12	248.4	297.57	299.31	321.53
1989	342.41	343.76	284	272.69	249.49	356.93	384.61	417.52	390.04	267.15	289.44	313.09	325.93
1990	326.85	307.55	310.91	282.51	297	370.65	367.27	461.59	367.73	222.44	247.88	278.46	320.07
1991	332.75	320.44	301.71	293.01	369.78	391.19	429	426.49	395.45	264.47	286.89	324.94	344.68
1992	369.86	331.61	302.62	304.8	287.29	319.91	404.75	417.72	355.92	261.03	287.37	324.55	330.62
1993	494.36	407.97	321.29	302.18	287.03	300.28	411.24	423.66	316.76	-9999	-9999	-9999	-9999
1994	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	243.78	245.69	322.34	-9999
1995	359.4	370.37	337.83	295.97	289.25	485.73	518.38	540.49	530.38	-9999	-9999	-9999	-9999
Avg	260.28	270.85	299.45	491.13	868.39	1030.22	551.39	383.24	326.32	273.95	270.79	255.59	442.76
Std Dev	151.03	127.97	112.08	251.72	578.4	676	315.23	192.96	192.3	138.43	118.88	133.41	159.68
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Avg Annual

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