Catalog Item

Columbia River below Grand Coulee Dam near Coulee Dam, Washington (GCGW) Daily Average Barometric Pressure (Sea Level) Time Series Data

Columbia River below Grand Coulee Dam near Coulee Dam, Washington (GCGW) average daily barometric pressure at sea level in millimeters of mercury (mmHg).
Query Data
Generation Effort Columbia-Pacific Northwest Water Operations Monitoring
Type Time series
Modeled/Observed Observed
Start Date Fri Apr 27 1984 12:00:00 GMT-0700 (Mountain Standard Time)
End Date Sat May 23 2026 01:00:00 GMT-0600 (Mountain Daylight Time)
Parameter Name Barometric Pressure (Sea Level)
Parameter Group Weather Data
Parameter Transformation average
Time Step daily
Parameter Unit mm Hg
Item Vertical Datum
Update Frequency daily
Last Update Sunday, May 24th, 2026

Disclaimer

Data are provisional and subject to revision unless otherwise noted. Data users are cautioned to consider carefully the provisional nature of the information before using it.