Global River Discharge Database | Center for Sustainability and the Global Environment (SAGE)

Results

Country:	U.S.A.
Station:	POLSON, MT.
River:	FLATHEAD RIVER
Area:	44053837.84
Lat:	47.67
Lon:	-114.24
Source:	USGS
PointID:	12372000
Area Units:	km²
Discharge Units:	m³/_sec
Starting Year:	1891
Ending Year:	1996
Total Years:	106
Total Usable Years:	105

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Avg Annual
1891	71.67	70.79	130.23	234.07	489.79	686.5	517.47	213.45	113.69	135.99	126.52	117.65	242.32
1892	99.11	113.27	137	131.08	323.96	1133.34	706.7	177.8	142.89	157.85	156.38	113.27	282.72
1893	99.11	84.95	158.37	217.49	531.65	822.42	403.13	150.66	134.21	189.71	166.49	127.43	257.14
1894	99.11	113.27	158.49	383.51	809.87	1125.03	489.85	198.59	160.75	173.07	177.04	133.35	335.16
1895	69.54	99.11	152.53	257.42	477.1	499.51	279.66	111.53	113.71	127.06	114.4	95.45	199.75
1896	70.79	113.27	156.95	152.83	309.62	977.13	404.57	174.35	226.54	198.22	141.58	169.9	257.98
1897	113.27	113.27	164.71	321.03	655.68	508.1	283.62	104.95	93.64	119.56	128.5	113.72	226.67
1898	117.84	131.98	124.73	297.19	638.5	923.32	403.77	133.94	120.21	139.01	126.2	117.56	272.85
1899	103.68	91.52	99.11	293.81	559.31	1029.23	657.23	233.36	155.25	162.5	181.72	138.79	308.79
1900	138.84	125.96	200.5	266.18	645.81	454.96	124.87	76.73	99.6	127.43	120.35	131.54	209.4
1901	97.68	91.52	146.02	176.84	701.35	449.96	166.38	67.3	79.22	99.96	108.2	93.46	189.82
1902	91.32	89	102.65	121.61	468.61	555.58	303.45	95.28	79.4	104.75	120.35	99.11	185.93
1903	113.27	99.11	123.76	209.32	357.33	693.11	310.66	113.26	91.76	129.59	127.43	151.63	210.02
1904	127.43	126.94	166.69	290.65	564.97	645.25	288.12	120.97	92.48	112.03	135.92	134.73	233.85
1905	113.27	111.75	145.81	132.86	165.73	332.31	184.72	89.79	69.85	82.67	108.55	101.39	136.56
1906	95	116.3	134.28	204.37	330.4	500.93	185.12	76.97	99.86	99.96	103.83	99.57	170.55
1907	82.67	129.95	193.42	280.73	452.73	935.03	752.68	227.88	169.3	173.56	155.74	131.99	307.14
1908	122.4	117.17	166.81	278.49	383.9	1518.45	535.37	166.64	165.71	235.67	217.1	159.85	338.96
1909	137.02	154.73	202.77	235.63	436.17	1038.01	369.53	164.3	203.46	202.79	186.42	124.69	287.96
1910	129.62	132.79	334.14	440.05	585.98	362.46	110.53	78.48	119.1	145.72	153.98	130	226.9
1911	89.52	115.8	184.84	200.47	313.81	742.94	260.22	117.43	108.81	148.07	156.22	126.51	213.72
1912	111.9	130.36	154.46	268.42	553.83	824.12	296.31	180.45	176.66	194.5	191.61	129.25	267.66
1913	93.17	108.72	128.8	407.76	608.08	1036.12	371.47	192.29	123.8	218.56	208.55	128.74	302.17
1914	130.44	148.36	204.07	283.91	577.03	673.09	189.02	94.27	111.38	192.32	171.32	127.88	241.92
1915	123.41	183.35	257.26	296.2	408.22	602.87	316.05	211.11	179.95	198.07	176.35	145.51	258.2
1916	112.81	188.94	318.16	279.67	492.53	891.7	659.22	202.64	176.06	181.77	166.97	136.29	317.23
1917	148.34	164.24	198.32	309.41	741.81	1105.59	444.3	127.54	131.59	141.68	173.68	138.39	318.74
1918	165.31	160.51	209.32	253.43	391.23	547.46	162.21	146.44	127.5	146.9	150.75	145.81	217.24
1919	141.69	143.19	176.52	226.03	255.85	155.62	68.9	52.85	58.74	69.11	78.97	78.51	125.5
1920	102.51	131.97	172.85	190.33	553.75	668.19	270.16	119.26	121.89	127.98	159.78	124.35	228.59
1921	113.23	130.12	152.71	270.51	487.34	697.64	211.26	93.52	111.69	113.42	130.92	142.63	221.25
1922	118.49	112.48	173	267.56	586.98	780.18	148.78	119.7	130.44	112.67	136.54	128.82	234.64
1923	126.85	126.88	161.75	304.56	434.43	539.82	258.84	151.25	117.89	125.75	142.07	132.87	218.58
1924	122.53	172.16	153.9	258.23	488.99	277.65	118.87	99.4	105.23	112.63	120.97	118.58	179.1
1925	120.6	138.24	153.5	287.23	508.52	560.77	248.41	121.8	155.01	192.01	198.79	172.97	238.15
1926	141.3	162.78	189.66	352.89	450.19	191.56	159.07	130.1	136.74	142.29	140.29	131.46	194.03
1927	131.6	132.82	168.02	196.16	607.81	1294.37	353.2	178.97	198.5	215.39	209.02	160.96	320.57
1928	144.4	172.32	264.54	290.09	780.91	509.67	319.91	149.99	145.62	151.19	152.54	141.23	268.53
1929	136.56	148.28	158.76	179.11	380.59	448.46	167.31	131.38	142.33	142.79	128.3	134.46	191.53
1930	133	117.56	126.39	347.54	272.76	176.27	94.62	90.93	104.26	107.2	106.19	108.11	148.74
1931	113.7	131.36	137.97	170.41	152.7	153.29	76.21	74.37	82.31	84.81	80.02	69.27	110.53
1932	67.31	73.43	137.48	189.72	312.35	438.25	146.97	117.96	100.92	114.23	114.65	84.95	158.19
1933	99.11	106.19	160.34	178.59	319.71	518.74	127.73	91.96	88.33	91.77	135.48	135.69	171.14
1934	148.2	130.88	141.25	285.22	242.98	201.47	75.43	44.64	53.52	78.79	82.72	82.96	130.67
1935	86.73	83	119.98	127.35	203.46	300.72	93.85	98.1	106.38	108.78	95.67	89.58	126.13
1936	86.41	81.34	97.76	130.19	317.26	226.77	108.18	100.8	104.64	112.45	107.26	102.64	131.31
1937	75.59	70.57	119.98	122.89	126.9	130.02	99.27	79.53	80.41	100.77	87.75	84.5	98.18
1938	78.2	86.18	84.56	116.85	325.94	547.08	350.22	89.38	88.59	107.11	141.7	124.66	178.37
1939	108.25	100.65	177.04	219.37	321.04	258.45	109.85	93.33	92.11	99.98	96.89	91.87	147.4
1940	89.24	85.88	113.98	144.9	234.18	242.53	96.08	90.01	82.68	89.21	93	110.45	122.68
1941	100.78	102.98	119.32	130.37	117.34	225.1	106.92	86.04	110.46	165.07	148.91	151.37	130.39
1942	123.66	124.9	162.32	348.51	421.77	666.3	202.77	96.75	100.57	121.51	146.68	140.86	221.38
1943	132.91	151.7	200.87	419.37	400.18	901.71	336.64	146.88	127.66	137.95	144.11	138.8	269.9
1944	131.79	132.24	152.75	150.67	199.76	560.33	322.02	132.64	122.38	129.38	135.74	133.36	191.92
1945	126.6	132.73	152.82	135.76	219.48	469.31	194.19	99.79	113.22	130.43	130.59	124.91	169.15
1946	135.07	135.31	151.22	222.49	275.16	311.26	163.99	104.72	132.47	162.66	163	178.93	178.02
1947	143.27	137.3	228.69	316.22	561.24	615.8	236.8	115.5	145.21	189.06	168.31	163.69	251.76
1948	152.52	155.14	171.49	322.69	619.59	1038.95	337.44	177.8	152.86	147.09	165.1	134.2	297.91
1949	127.61	135.01	182.04	286.93	399.41	379.59	133.39	89.98	100.89	134.34	146.3	121.78	186.44
1950	111.08	140.98	176.57	171.8	267.71	584.46	291.21	178.5	140.51	177.41	179.24	175.92	216.28
1951	146.98	139.82	193.1	267.54	553.37	540.85	244.59	139.79	160.01	172.48	174.35	142.54	239.62
1952	131.54	166.34	195.9	332.92	617.04	417.35	214.14	130.06	117.97	130.87	152.1	142.38	229.05
1953	156.43	144.94	144.36	142.93	293.77	876.41	220.28	116.96	101.54	101.31	122.31	145.34	213.88
1954	139.73	164.82	145.85	156.13	193.83	254.67	158.64	98.2	96.32	111.06	139.7	136.17	149.59
1955	144.86	135.93	142.97	149.35	208.82	239	194.03	144.26	139.23	164.57	159.93	177.48	166.7
1956	175.75	178.98	177.39	197.11	345.22	400.55	149.5	145.74	141.2	149.9	150.59	155.55	197.29
1957	146.71	175.67	188.54	170.91	224.68	406.33	185.78	145.96	148.42	143.69	148.94	159.91	187.13
1958	168.71	171.46	158.52	192.86	281.82	312.64	228.44	152.63	147.81	153.41	148.82	140.05	188.1
1959	136.17	128.41	150.24	138.39	314.77	474.96	206.54	111.49	88.72	163.62	280.58	329.74	210.3
1960	136.1	127.49	144.15	252.14	356.62	281.36	133.49	136.14	139.41	150.48	143.33	138.36	178.26
1961	146.76	155.94	111.31	101.21	128.52	152.17	128.58	142.02	118.66	112.71	145.2	154.8	133.16
1962	154.01	152.28	172.52	155.75	246.84	397.23	153.23	152.83	160.49	166.77	154.83	136.63	183.62
1963	147.05	216.71	150.24	139.53	250.19	511.12	212.93	134.18	137.85	141.88	150.52	147.95	195.01
1964	148.04	160.33	152.95	148.87	427.06	888.4	351.02	181.2	178.59	179.08	190.89	207.4	267.82
1965	223.7	248.7	235.93	331.93	511.62	654.12	431.61	175.75	238.65	357.07	307.15	200.42	326.39
1966	187.17	174.45	226.44	229.3	255.14	192.15	146.89	134.15	114.47	112.01	113.61	174.47	171.69
1967	207.54	218.38	211.24	182.15	328.45	779	375.01	192.27	156.43	154.6	162.37	169.41	261.4
1968	212.61	218.52	304.41	266.09	325.57	459.49	262.34	190.43	178.1	222.39	214.37	191.28	253.8
1969	219	236.4	293.11	389.26	432.88	405.01	429.15	196.83	157.42	152.56	170.7	190.34	272.72
1970	201.16	208.33	192.28	249.53	551.54	605.98	322.85	205.59	182.11	178.78	207.06	198.72	275.33
1971	232.18	247.84	227.2	312.57	580.96	419.96	327.1	186.82	184.2	203.86	188.56	184.16	274.62
1972	206.96	228.98	242.4	275.45	398.45	468.49	252.03	208.55	208.52	218.45	210.79	197.97	259.75
1973	195.62	194.44	149.45	137.35	184.12	194.7	172.87	120.84	104.16	137.33	172.36	181.35	162.05
1974	201.81	201.79	205.26	246.24	323.33	553.88	277.87	205.45	185.67	149.91	143.18	175.52	239.16
1975	200.37	202.16	224.63	271.29	625.35	857.06	656.12	261.23	227.31	251.04	288.42	273.14	361.51
1976	228.45	224.25	249.12	390.53	720.17	522.73	297.19	225.46	214.78	197.74	202.45	200.69	306.13
1977	201.15	183.27	154.07	184.24	189.38	114.83	104.06	126.32	112.19	142.01	171.84	185.23	155.72
1978	199.7	227.24	311.9	275.01	457	426.27	371.11	215.69	221.61	181.83	202.03	200.06	274.12
1979	214.94	213.19	265.59	277.81	370.4	291.96	164.16	154.52	139.9	127.49	125.76	149.71	207.95
1980	175.52	161.5	167.06	202.95	278.92	647.42	292.31	165.06	125.73	170.12	194.47	210.44	232.62
1981	202.17	212.04	220.35	184.66	552.27	807.7	265.99	178.65	130.99	128.44	152.52	163.99	266.65
1982	204.8	234.73	225.54	256.13	365.69	695.65	448.4	210.52	179.55	206.83	203	188.72	284.96
1983	201.94	197.92	212.31	216.39	327.66	320.07	396.62	210.05	177.93	199.63	254.22	193.15	242.32
1984	217.55	213.1	220.82	253.68	361.2	535.29	354.8	226.34	289.96	239.47	207.24	197.69	276.43
1985	200.05	194.07	181.76	202.57	246	167.66	112.57	127.92	129.51	200.16	212.66	200.14	181.26
1986	192.03	209.99	220.85	239.94	333.65	328.97	193.51	168.01	161.45	147.64	185.84	178.64	213.38
1987	181.21	144.16	137.66	158.43	154.18	117.76	129.58	123.07	122.49	112.64	131.42	126	136.55
1988	138.88	132.23	124.74	131.86	169.19	131.97	112.39	109.65	111.56	101.55	104.03	105.59	122.8
1989	124.92	146.14	203.71	202.54	299.89	211.98	129.37	129.75	126.7	130.77	148.69	162.2	168.05
1990	152.05	176.85	161.11	212.36	208.56	208.22	123.58	140.78	134.83	116.85	121.29	142.63	158.26
1991	168.81	154.68	129.17	148.38	336.39	438.96	236.32	161.88	158.88	144.19	140.91	155.67	197.85
1992	154.47	148.21	131.77	118.37	130.61	129.93	121.2	107.11	108.32	114.66	112.01	115.79	124.37
1993	145.97	143.31	158.04	167.01	360.33	451.94	450.15	298.77	265.47	241.02	230.84	225.16	261.5
1994	223.93	197.13	196.68	250.78	283.87	157.38	124.93	113.1	112	122.76	122.26	124.89	169.14
1995	124.8	144.62	158.23	188.14	473.92	572.95	382.49	199.74	206.02	204.15	206.47	217.14	256.56
1996	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999

Avg	141.51	149.25	175.86	231.27	394.29	530.55	261.43	142.84	136.8	150.9	156.1	147.37	218.18

Std Dev	41.93	42.85	48.49	76.76	161.3	291	146.39	48.03	43.3	44.77	42.57	40.2	59.19

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Avg Annual

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