Degree Days for Energy Professionals Energy Managers Energy Consultants Asset Managers scientists

Calculate Heating Degree Days for various cities in the world – in just 3 clicks!

Three clicks to calculate Degree Days
7

Why do we use Heating and Cooling Degree Days in Energy Data Analysis?

If you are not going to use them, then you might as well be blindfolded!

In colder winters, buildings require more heating, and in hotter summers, more air conditioning. Degree Days calculated by Energy Data GmbH take the variability of the weather out of the equation and help you to track, manage, and optimize energy consumption in millions of buildings worldwide.

That is why Degree Days are an important metric used by energy managers, factory managers, facility owners as well as home owners and energy enthusiasts to analyze energy usage patterns.

Our Degree Day Calculator is a quick, simple, and complete tool to help you analyze and optimize how your heating and cooling consumption. No more copy & pasting Excel data, no complicated formulas – just a single click for your specific location.

You are not using Degree Days in your energy data analysis yet at all? using Degree Days in your analysis but fetching them manually? are calculating Degree Days manual from different weather data sources? need worldwide and 100% reliable data?
Then it is time to test our Degree-Day-as-a-Service!

We take care of all the Degree Day calculations needed for you with the best weather sources available, and save your time and money – all that you need is to decide if you want to use our web apps or your existing software tools.

From Excel to sophisticated energy management software: we help you to set up our API to feed the dynamic data into your existing tools.

Save time. Save Energy. Save Money.

 What our users say about us

{As a result of taking the variability of the winters out of the equation, I can better understand the effects of energy efficiency improvements. Especially the long-term average is a very helpful indicator for my work.
5
Erika Bravo
HVAC & Energy Management Business
{Finally, I found a fast, easy and accurate tool for adjusting the heating consumptions of our clients!
5
Devan Hill
Energy and Sustainability Manager
{The Energy Data Degree Day Subscription is a fantastic time saver! I love the quick access via the web calculator and get the results directly as a graph. I have been using it for a few months now and will continue to use it in my daily work. I recommend this to anyone who needs degree day information.
5
Nicole Finnagen
Asset Manager
{The Degree Day API is an extremely valuable resource for everybody working in the energy industry.
5
Paul Nash
Paul Nash
Energy Consultant
{The Degree Day Calculator PRO is the easiest and most reliable way to calculate Heating and Cooling Degree Days I found this far. No more copy/pasting Excel data, no complicated formulas - just a single click for your specific location. For me, it's safe to say that it is indeed one of the best tools available.
5
Sven Lewin
{The Degree Day Calculator PRO is the easiest and most reliable way to calculate Heating and Cooling Degree Days I found this far. No more copy/pasting Excel data, no complicated formulas - just a single click for your specific location. For me, it's safe to say that it is indeed one of the best tools available.
5
Sven Lewin
{As a result of taking the variability of the winters out of the equation, I can better understand the effects of energy efficiency improvements. Especially the long-term average is a very helpful indicator for my work.
5
Erika Bravo
HVAC & Energy Management Business
{The Energy Data Degree Day Subscription is a fantastic time saver! I love the quick access via the web calculator and get the results directly as a graph. I have been using it for a few months now and will continue to use it in my daily work. I recommend this to anyone who needs degree day information.
5
Nicole Finnagen
Asset Manager
{Finally, I found a fast, easy and accurate tool for adjusting the heating consumptions of our clients!
5
Devan Hill
Energy and Sustainability Manager
{The Degree Day API is an extremely valuable resource for everybody working in the energy industry.
5
Paul Nash
Paul Nash
Energy Consultant

This is how the free Degree Days Calculator works

 

Degree Day Calculator Free

Choose a weather station on the map or use the search bar for finding stations nearby your address or city.

The public version of our Degree Day Calculator is available for all stations marked with a pink marker. Stations with a turquoise marker are only available to registered members.

Copy selected weather station to the calculator form.

Select the energy indicator.

The free public version of our Degree Day Calculator gives you access to calculate Heating Degree Days and “Room Heating Degree Days”.

Registered members can also calculate Cooling Degree Days.

Copy the station ID from the map above or start typing and use the auto-complete function.

Set start and end date for your calculation.

The public free version allows you to get Degree Days for the last 12 months. Registered members can access the whole last year on top.

If you need more historical data, check out our subscriptions for the pro version, which gives you access to a minimum of 10 years of data.

Set the Heating or Cooling Limit (balance point) for your Degree Day Calculation.

Set the result break-down. You can choose between yearly, monthly, and weekly aggregation.

As a registered member, you are able to access daily values, too.

The free version only allows you to calculate Degree Days with the Integration Method, which is the most accurate one.

The pro version additionally offers two other methods: Min./Max. Temperature and Daily Mean Temperature.

Our public and free calculator offers the main functions for Degree Day Calculation. Just check the following steps.

Registered users can enjoy additional features like the ability to calculate Heating and Cooling Degree Days per day and access values for over 23,000 locations. Long-term average values are also available. 

What are Degree Days?

Heating Degree Days are used to describe, assess and compare the heat consumption of buildings. The same approach can be used to assess the energy consumption for cooling (Cooling Degree Days). These key metrics reflect the climatic conditions of a location which influence the heating requirement.

Degree-Days-as-a-Service

save more than 10% on annual plans

Lite

The Starter Package

39 € /mth.

Tools included:
  • RDegree Day Calculator PRO
    Access to our easy-to-use web-based Degree Day Calculator.
  • REnergy Normalizer
    Normalize your energy data directly in your browser. No more complex calculations and spending hours on an Excel data sheet.
  • RAPI
    Connect your energy management software, database, or Excel sheet to our database and automatically fetch the latest Degree Days via API.
Data included:
  • RHeating Degree Days (HDD)
  • R"Room Heating Degree Days" (DD)
  • RCooling Degree Days (CDD)
  • Rup to 10 locations
  • Rmin. 10 years of historical data
  • Rup to 100 requests per hour

learn more

  • R30 days money back guarentee
    Test our service risk-free for 30 days. If you are not satisfied, we will refund 100% of your payment.

Professional

For high Data Demands

89 € /mth.

Tools included:
  • RDegree Day Calculator PRO
    Access to our easy-to-use web-based Degree Day Calculator.
  • REnergy Normalizer
    Normalize your energy data directly in your browser. No more complex calculations and spending hours on an Excel data sheet.
  • RAPI
    Connect your energy management software, database, or Excel sheet to our database and automatically fetch the latest Degree Days via API.
Data included:
  • RHeating Degree Days (HDD)
  • R"Room Heating Degree Days" (DD)
  • RCooling Degree Days (CDD)
  • Rup to 25 locations
  • Rmin. 10 years of historical data
  • Rup to 1,000 requests per hour

learn more

  • R30 days money back guarentee
    Test our service risk-free for 30 days. If you are not satisfied, we will refund 100% of your payment.

Enterprise

All Features

149 € /mth.

Tools included:
  • RDegree Day Calculator PRO
    Access to our easy-to-use web-based Degree Day Calculator.
  • REnergy Normalizer
    Normalize your energy data directly in your browser. No more complex calculations and spending hours on an Excel data sheet.
  • RAPI
    Connect your energy management software, database, or Excel sheet to our database and automatically fetch the latest Degree Days via API.
Data included:
  • RHeating Degree Days (HDD)
  • R"Room Heating Degree Days" (DD)
  • RCooling Degree Days (CDD)
  • Rover 23,000 locations
  • Rmin. 10 years of historical data
  • Rup to 4,000 requests per hour

learn more

  • R30 days money back guarentee
    Test our service risk-free for 30 days. If you are not satisfied, we will refund 100% of your payment.

Do you need a higher hourly rate limit (request units per hour)?

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