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 1930 (2092, 1761) in our monthly survey.
Hefei is a major city in China (216).
This city is on position 1869 (1991, 1578) in our monthly survey.
Hegang is a major city in China (734).
This city is on position 1970 (2020, 1815) in our monthly survey.
Hejian is a major city in China (663).
This city is on position 2019 (1848, 1804) in our monthly survey.
Helena, MT is a major city in USA.
This city is on position 1068 (1531, 1175) in our monthly survey.
Helena, MT-Airport is an airport in Helena, MT/USA with the Airport Code HLN
This airport is on position 938 (522, 347) in our monthly Top100 of World Airports