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.

CountryRiver

Daily data from 1876 to 6 November 2026

Download this tab’s data (CSV)River: Kettős-Körös →

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.

River

Kettős-Körös

6 stations · Available series since 1901. · River page →

stations · Kettős-Körös
stations	countries	km	Minimum	Maximum
Doboz1901–2026 · 44,597 station-days with data	HU	32.88	-17 cm29 December 1962	925 cm27 July 1980
Békés duzzasztó felső1969–2026 · 21,007 station-days with data	HU	26.34	90 cm15 October 1970	952 cm27 July 1980
Békés duzzasztó alsó1969–2026 · 21,007 station-days with data	HU	26.26	-121 cm22 November 1983	952 cm27 July 1980
Békés1901–2026 · 45,962 station-days with data	HU	23.4	-139 cm7 December 2000	962 cm27 July 1980
Mezőberény1951–2026 · 11,050 station-days with data	HU	14.78	-122 cm5 November 1961	882 cm26 February 1999
Köröstarcsa1901–2026 · 37,777 station-days with data	HU	7.1	-139 cm5 November 1961	852 cm4 May 1919

The daily series uses the first reading of each day.