Skip Navigation LinksHome > Weather Forecasts > Weighted Degree Days Client Log-In
USA Gas and Power Weighted Degree Days
UK Germany Germany Polish Go To Product
PDF Document product

The Purpose...

Speedwell Cleaned Data for 198 U.S locations

15-day Max/Min Forecasts for 198 US locations



  • Use the data to estimate the EIA natural gas storage and withdrawal forecasts (high weather correlation)
  • Use the data to examine historical events in the context of recent, current, or upcoming extreme weather events
  • Correlate with energy usage

The Product...

  • Historical Data
    • Max / Min station data, HDD / CDD totals on a state, regional, production / consumption, and national levels
    • Data available from Jan 1st 1975 to present
  • Climatological Data
    • Continuously updated 10 yr and 30 yr smoothed normals
  • Operational Data (delivered daily)
    • Summary maps / tables
    • E-mail summary of the national numbers
    • Numerical product: previous 7 days of cleaned actuals & 15-day forecast (presented as daily values on state, regional, production / consumption, and national level)
    • Underlying daily data delivered daily via FTP

The Inputs...

  • Speedwell: industry leader for cleaned weather observations, data quality controlled, missing values filled
Documents and Brochures
Documents UK Germany Germany Polish
Weighted Degree Day Report PDF Document
Go To Product product
Please contact us for more information.
We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we'll assume that you are happy to receive all cookies from this website. If you would like to change your preferences you may do so by following the instructions here
This site will be unavailable on Sunday 23rd for important maintenance work.