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Water temperature in the Upper Missouri, Milk, and Yellowstone Rivers, and associated air temperature and discharge data.

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: August 25, 2025 | Last Modified: 20250501
The data set contains measurement locations and measurements of daily and sub-daily water temperature, daily river discharge, and daily air temperature for several sites in the Upper Missouri River basin of Montana and North Dakota, 2001-2022. Water temperature sites include: the Missouri River upstream from Fort Peck Reservoir, Montana; multiple locations through a 351-km reach extending from Fort Peck Dam, Montana, downstream to near Williston, North Dakota; the lower reach of the Milk River, Montana; the lower reach of the Yellowstone River, North Dakota. River discharge data were obtained from USGS stream gages located in the study area and from the US Army Corps of Engineers. Air temperature data were obtained from NOAA weather stations in the study area. Water and air temperature data are presented in degrees Celsius. Discharge data are presented in cubic meters per second.

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