Statistics

Statistics by country and year

Yearly summaries computed from the daily readings of every station: how many station-days were spent below the low-water level (LDC) or above the high-water level (HDC) — as a count and as a share of the station-days with thresholds. Useful for agriculture (irrigation seasons with low water) and navigation (days with restricted draught).

Agriculture: station-days below LDC mark the low-water periods when irrigation intakes and water availability are under pressure.
Navigation: days below LDC mean draught restrictions on that sector; days above HDC mean suspended traffic.

Download this tab’s data (CSV)

LDC: Low-water mark. The river stays above it on 94 of 100 ice-free days; below it, ships cannot sail fully loaded.
HDC: High-water mark. The river exceeds it on 1 day in 100; above it, navigation can be suspended.
Station-days: One station-day is one station measured for one day: 13 stations over 10 days make 130 station-days. It shows how widely and how long something lasted.

Most LDC/HDC episodes were in 2025: 687

LDC/HDC episodes by year

Recorded low-water (LDC) and high-water (HDC) episodes, by year and station: count, duration, extreme level.

LDCHDCOlder decades: average per year; the line spans the lowest to the highest year.episodes

LDC/HDC episodes by year
Year	LDC	HDC	days	longest (days)
2026	450	5	9,048	137
2025	666	21	6,423	86
2024	147	106	1,888	58
2023	248	96	2,983	51
2022	488	16	5,370	88
2021	353	46	2,741	54
2020	365	44	1,834	40
2019	391	59	3,288	51
2018	505	53	6,508	55
2017	377	34	2,078	41
2016	251	37	1,215	47
2015	612	19	5,589	76
2014	172	53	793	17
2013	140	109	2,104	45
2012	263	51	1,656	73
2011	402	76	4,162	54
2010	50	151	1,542	56
2009	280	91	1,948	49
2008	321	48	1,463	50
2007	200	91	1,285	32
2006	416	195	3,628	51
2005	264	154	1,791	46
2004	257	32	1,250	24
2003	484	4	4,793	105
2002	13	126	583	16
2001	54	32	279	34
2000	40	32	300	59
1999	28	61	445	35
1998	44	13	200	16
1997	96	54	756	67
1996	56	34	518	78
1995	22	40	162	19
1994	70	31	526	29
1993	37	13	165	14
1992	94	9	848	73
1991	127	43	981	43
1990	77	9	610	62
1989	28	0	132	16
1988	19	45	451	38
1987	11	39	194	15
1986	100	1	861	28
1985	61	38	499	20
1984	26	0	206	46
1983	100	4	993	132
1982	12	26	208	63
1981	23	63	566	26
1980	17	25	284	44
1979	17	40	340	37
1978	29	2	322	95
1977	24	39	382	100
1976	31	3	198	33
1975	6	50	437	29
1974	0	33	147	10
1973	48	4	273	20
1972	45	1	374	44
1971	42	0	530	96
1970	6	101	792	86
1969	42	1	472	121
1968	3	5	62	28
1967	10	27	213	24
1966	0	87	610	24
1965	9	93	1,958	84
1964	11	8	139	23
1963	13	13	204	57
1962	25	25	447	40
1961	19	5	255	46
1960	1	11	32	6
1959	11	58	350	29
1958	3	38	147	12
1957	1	20	126	9
1956	0	27	194	15
1955	0	52	254	22
1954	13	40	441	22
1953	21	2	707	68
1952	7	35	345	47
1951	10	15	99	19
1950	19	1	245	30
1949	25	28	444	35
1948	14	48	382	20
1947	25	19	1,295	95
1946	17	10	346	52
1945	1	20	110	13
1944	0	65	503	22
1943	24	10	293	35
1942	25	26	739	87
1941	1	31	324	37
1940	1	47	418	24
1939	16	18	151	9
1938	19	2	323	52
1937	14	12	174	27
1936	5	1	36	9
1935	30	2	462	49
1934	46	0	724	69
1933	41	0	420	38
1932	32	0	787	95
1931	13	0	78	17
1930	16	4	281	65
1929	34	3	788	108
1928	42	6	506	60
1927	23	0	229	24
1926	12	32	647	63
1925	30	8	242	17
1924	14	33	717	91
1923	16	14	272	39
1922	9	4	55	13
1921	43	0	801	81
1920	5	32	551	74
1919	15	0	145	28
1918	29	5	322	39
1917	14	11	313	41
1916	0	1	1	1
1915	0	1	1	1
1914	4	28	133	19
1913	10	1	89	17
1912	1	34	132	7
1911	14	3	601	146
1910	0	29	141	22
1909	26	9	263	24
1908	22	2	838	105
1907	14	31	515	61
1906	15	7	122	28
1905	7	4	38	8
1904	14	0	135	25
1903	5	12	84	11
1902	17	0	307	44
1901	32	0	410	49
1900	1	1	2	1

By station

By station
Station	countries	River	LDC	HDC	days
Baja	Hungary	Danube	267	48	4347
Duna Mohács	Hungary	Danube	239	45	4144
Veliko Gradište	Serbia	Danube	548	266	3943
Budapest	Hungary	Danube	275	86	3270
Paks	Hungary	Danube	225	58	3111
Dombori	Hungary	Danube	183	51	2702
Oryahovo	Bulgaria	Danube	178	7	2514
Komárom	Hungary	Danube	256	109	2491
Silistra	Bulgaria	Danube	136	12	2480
Banatska Palanka	Serbia	Danube	331	13	2396

Computed from recorded episodes (official reference source of each station): 14375.

The daily series uses the first reading of each day.