Mats Bengtsson Heat saving calculations and house energy need

Available mean temperature data from different locations

Mats Bengtsson mib over the years

Available average temperature data

Nowadays, temperature data is becoming easy to get hold on. There is many locations on the web holding data, covering many many years. The best place I have come upon is listed below together with their "commercial":


Klein Tank, A.M.G. and Coauthors, 2002. Daily dataset of 20th-century surface
air temperature and precipitation series for the European Climate Assessment.
Int. J. of Climatol., 22, 1441-1453.
Data and metadata available at

I tend to use average temperature data from Copenhagen (Landbohojskolen), Denmark (close to Malmoe). There is a lot of data available (1874 to 1999). To get a little more recent data, I also use data from Hammer Odde, which is only a small bit further northwest in Denmark. (1984 to 2005).

For those living in other places off Sweden, it can for example be pointed out that data also exist for example for Stockholm.

For those wanting to experiment, but not willing to try to fetch the above data themselves, I have created a web page allowing you to make calculations on electric heating cost and comparing different heat pumps to see how heating cost can be reduced.


Never trade stocks without having tested your system. In fact, most trading systems are not profitable if tested over many stocks. Full story...

Do not invest in heating equipment without having compared the alternatives, not only to current situation, but also to each other. Full story...

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