DRY 2001-2010

The Danish Design Reference Year (DRY) was last updated in 1995 by Hans Lund at DTU. This consisted of a full year of typical meteorological data based on meteorological data from the period 1975–1989. It is well known that the climate of Denmark has since changed. Hence this updated DRY data set has been made with the support of the EUDP programme funded by the Danish Energy Agency.

The purpose was – and still is – to produce a data set from meteorological data, designed specifically to be used as input data for computer simulations of technical dimensioning, i.e. in the energy and construction sector.

The full DRY technical report (Wang et al. 2013) and the data set is available for download at www.dmi.dk/laer-om/generelt/dmi-publikationer/tekniske-rapporter/

DRY irradiance stations

Data from the six global radiation stations marked on this map were used to make the design reference year (DRY) 2001-2010 data sets. The stations were chosen based on the quality of the data and how representative the stations were of typical Danish regions as demarked on the map.

DRY global horizontal irradiance data

Plot of the global horizontal irradiances measured at the DRY stations in the 12 DRY months. These months were chosen from the ten year period 2001-2010. The choice is primarily based on which months had average irradiances closest to the ten year average. Additionally, the month selected have temperatures and relative humidities that are close to the ten year average. Thus, they can be considered to be typical months in the 2001-2010 period. Those months are: January 2009, February 2009, March 2006, April 2010, May 2006, June 2005, July 2009, August 2009, September 2009, October 2008, November 2010, December 2009.


  • Dragsted, J. & S. Furbo: "Solar radiation and thermal performance of solar collectors for Denmark," DTU Report R-275, DTU, Kgs. Lyngby, Denmark, 2012.
  • Lund, H.: "The Design Reference Year users manual," www.byg.dtu.dk/Publikationer/LFV, LfV Report 274, DTU Civil Engineering, Kgs. Lyngby, Denmark, 1995.
  • Wang, P. R., M. Scharling & K. P. Nielsen: "2001 - 2010 Design Reference Year for Denmark," beta.dmi.dk/fileadmin/Rapporter/TR/tr12-17.pdf, Technical Report 12-17, DMI, Copenhagen, Denmark, 2012.
  • Wang, P. G., M. Scharling, K. B. Wittchen & C. Kern-Hansen: "2001 - 2010 Dansk Design Reference Year - Supplerende datasæt," www.dmi.dk/fileadmin/user_upload/Rapporter/TR/2013/TR13-18.pdf, Technical Report 13-18, DMI, Copenhagen, Denmark, 2013.
  • Wang, P. G., M. Scharling, K. P. Nielsen, K. B. Wittchen & C. Kern-Hansen: "2001 - 2010 Danish Design Reference Year - Reference Climate Dataset for Technical Dimensioning in Building, Construction and other Sectors," www.dmi.dk/fileadmin/user_upload/Rapporter/TR/2013/TR13-19.pdf, Technical Report 13-19, DMI, Copenhagen, Denmark, 2013.