VEMAP: 100 years of climate data

• Historical precipitation and temperature data from over 10,000 weather stations interpolated on 0.5° cells for the U.S.

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Climate data used in this project were provided by the Vegetation/EcosystemModeling and Analysis Project (VEMAP)

VEMAP interpolated climate data to a 0.5° by 0.5° grid

- Precipitation measurements from 8,500 climate stations

- Temperature measurements from 5,500 temperature stations

Precipitation increases to the east; study region average is 2.5 inches/month

Temperature increases to the south; study region average is 67°F

Data covers an extensive time period: January 1895-December 1993

-A kriging method was used to compensate for years with less data