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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.



USGS 12388700 Flathead River at Perma MT

  Stream Site

DESCRIPTION:
Latitude 47°22'00.45",   Longitude 114°35'06.00"   NAD83
Sanders County, Montana, Hydrologic Unit 17010212
Drainage area: 9,024 square miles
Contributing drainage area: 9,004 square miles,
Datum of gage: 2,469.3 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1990-10-01  2025-09-25  
 Daily Data
    Temperature, water, degrees Celsius  1999-07-21  2025-09-24  16608 
    Discharge, cubic feet per second  1983-10-01  2025-09-24  15335 
 Daily Statistics 
    Temperature, water, degrees Celsius  1999-07-21  2024-10-31 5320 
    Discharge, cubic feet per second  1983-10-01  2025-02-24 15123 
 Monthly Statistics 
    Temperature, water, degrees Celsius  1999-07  2024-10  
    Discharge, cubic feet per second  1983-10  2025-02  
 Annual Statistics 
    Temperature, water, degrees Celsius  1999  2025  
    Discharge, cubic feet per second  1984  2025  
 Peak streamflow 1984-06-29  2023-05-15  40 
 Field measurements 1983-09-29  2025-07-31  237 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1971-07-27  2013-09-11  263 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Montana Water Science Center
Email questions about this site to Montana Water Science Center Water-Data Inquiries