Glossary H
Glossary H
Heating Degree-Day (HDD) is a measure of the need for heating based upon outdoor temperatures. Heating degree-days are calculated as follows:
Daily mean temperature minus 18.3 °C (65 °F)
Hechuan is a major city in China (261).
This city is on position 2038 (1769, 1901) in our monthly survey.
Hefei is a major city in China (216).
This city is on position 1789 (1537, 901) in our monthly survey.
Hegang is a major city in China (734).
This city is on position 1986 (1611, 1537) in our monthly survey.
Hejian is a major city in China (663).
This city is on position 1835 (1595, 990) in our monthly survey.
Helena, MT is a major city in USA.
This city is on position 766 (1104, 2036) in our monthly survey.
Helena, MT-Airport is an airport in Helena, MT/USA with the Airport Code HLN
This airport is on position 1771 (1806, 933) in our monthly Top100 of World Airports