Date/Temperature [˚C]

Air*

Concrete

Asphalt

Steel

15.2.2013 (Winter: W1, W2)

−1˚C

0˚C

4˚C

0˚C

15.2.2013 (Winter: W3)

0˚C

0˚C

8˚C

0˚C

28.8.2012 (Summer: S1)

20˚C

18˚C

20˚C

16˚C

28.8.2012 (Summer: S2, S3)

22˚C

20˚C

25˚C

18˚C