Historical Degree Day Files

If you only need historical data periodically, our basic historical data only subscription may fulfill your needs. All of the site specific and composite data files on this page are updated once per month, usually on or around the 7th. Hourly and daily data has undergone extensive cleaning and filling procedures. Most sites are free of missing data, and most errors have been corrected. Historical data is updated with the quality controlled data from NCDC each month, and then with the final edited versions of the data (where available) a few months later. If you notice any questionable or erroneous data, please contact us.

SAMPLE DAILY DATA FILE (Tulsa, OK) ------------SAMPLE HOURLY DATA FILE (Tulsa, OK)

*** You must have an active account and be logged in to access any of the data files below. ***

All of the site specific and composite data files on this page are updated once per month, usually between the 7-10th. Hourly and daily data has undergone extensive cleaning and filling procedures. Most sites are free of missing data, and most errors have been corrected. Historical data is updated with the quality controlled data from NCDC each month, and then with the final edited versions of the data (where available) a few months later. If you notice any questionable or erroneous data, please contact us.

Regular Frontier Weather subscribers may access more recent daily and hourly weather data here:
http://www.frontierweather.com/weatherdata_daily.html

If you would like a site specific data file created for a site not listed here, let us know, and we will work to set that up for you.

Population Weighted Weather Data

Guide to Population and Gas Weighted Degree Days

PWvbY = Population weights vary by yearly population data PWf2010 = Population weights fixed for all years to 2010 populations

US Data
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010
State Data
1980-2013
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
2014-Pres
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
Monthly
Totals
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
EIA 3 Region
1980-2013
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
2014-Pres
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
Monthly
Totals
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
EIA 5 Region
1980-2013
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
2014-Pres
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
Monthly
Totals
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
NERC Region
1980-2013
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
2014-Pres
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
Monthly
Totals
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
Census Region
1980-2013
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
2014-Pres
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)
Monthly
Totals
PWvbY (Alt Fmt)
PWf2010 (Alt Fmt)

Natural Gas, Electric, Fuel Oil and Propane Heating Weighted HDDs and NG/AC Weighted CDDs

Guide to Population and Gas Weighted Degree Days

PWvbY = Population weights vary by yearly population data PWf2010 = Population weights fixed for all years to 2010 populations

US and EIA 3 Region HDDs
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010
US and EIA 5 Region HDDs
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010
US Fuel Oil and Propane HDDs
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010
Fuel Oil and Propane HDDs by PADD Region
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010
US and EIA 3 Region CDDs
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010
US and EIA 5 Region CDDs
1980-2013
PWvbY
PWf2010
2014-Pres
PWvbY
PWf2010
Monthly
Totals
PWvbY
PWf2010

Historical FORECAST Population, Natural Gas, Electric, Fuel Oil/Propane Degree Days

All data is based on historical Frontier Weather forecasts using weightings fixed to 2010 values. All data files are for the period 2010 to present and contain the 15 day forecast from each day a forecast was made.