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NASA POWER / Monthly and annual weather and solar data for a location

Monthly averages (and an annual value per year) of weather and solar parameters for any point on Earth, for whole years from 1981: temperature, precipitation, solar irradiance, wind, humidity and more. A bad parameter code, date or coordinate answers HTTP 422 at $0. Free. Credit: data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science Division. Cite the POWER version and the date you accessed it.

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