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U.S. Monthly Gridded Precipitation and Temperature Climate Baseline for 1901-2000 (NCEI Accession 0248762)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 04, 2025 | Last Modified: 2022-06-23T00:00:00.000+00:00
A 1/24 degree by 1/24 degree (~5 km) gridded data set consisting of monthly precipitation and temperature values for the conterminous U.S. was published as part of generating new division climate normals. The underlying data set is nClimGrid, and this is based on a set of station anomalies observed in any given month interpolated spatially using climate guidance and reconstructed into whole values. The resulting monthly grids are the equivalent of homogenous temperature and serially complete precipitation records. Therefore, a simple 100-year average of monthly grids from 1901-2000 yields directly a set of gridded climate baseline values. Monthly gridded climate baseline values are calculated for total precipitation, and maximum, minimum and average temperature.

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