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Features

  • Population-weighted demand indexes of daily average temperature for over 60 countries
  • US national and regional population-weighted and gas-consumption-weighted indexes based on NOAA methodology
  • Regional precipitation indexes for hydro catchments
  • Combination of historic data look back for multiple periods and forecasts (GFS and ECMWF)
  • Baskets can be viewed along with the individual station data
Population
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The Speedwell Weather site has been officially migrated to portal.speedwellclimate.com. This site will be decommissioned on March 31, 2025. We encourage you to transition to the new portal at your earliest convenience.

The new site provides exactly the same data and functionality. You can access this page at current page link