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: Trattnach →

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

Trattnach

5 stations · Available series since 1977. · River page →

stations · Trattnach
stations	countries	km	Minimum	Maximum
RHB Leithen (Ausfluß)1981–2026 · 12,714 station-days with data	AT	34.43	113 cm15 December 1983	185 cm31 January 1982
Strötting1977–2026 · 14,673 station-days with data	AT	22.94	13 cm2 August 1992	225 cm2 June 2013
Grieskirchen1977–2026 · 14,326 station-days with data	AT	13.44	43 cm28 July 1983	329 cm12 August 2002
Bad Schallerbach1977–2026 · 14,314 station-days with data	AT	5.18	86 cm29 September 2009	323 cm12 August 2002
RHB Leithenspeicher2026–2026 · 15 station-days with data	AT	—	504 cm23 October 2026	520 cm26 October 2026

The daily series uses the first reading of each day.