In the United States, domestic United Airlines flights typically operate from one of the airlineâs eight American hubs. The largest hubs are at Chicagoâs OâHare International Airport (ORD), which also serves as the companyâs headquarters, and Houstonâs Bush Intercontinental Airport (IAH).
Best time to visit Broken Hill. The best time to visit Broken Hill will be when the average temperatures are at a comfortable level (between 20Â°C / 68.0Â°F and 30Â°C / 86.0Â°F on average) which is during months January, February, March, November and December.n the other hand, the coldest time of year in Broken Hill is in July when it is 10.2Â°C / 50.4Â°F on average, but could get down to 5.3Â°C / 50.4Â°F minimum. 1  Freezing months: 0 (0Â°C / 32.0Â°F and below).
Melbourne: Annual Weather Averages. January is the hottest month in Melbourne with an average temperature of 21Â°C (70Â°F) and the coldest is July at 10Â°C (50Â°F) with the most daily sunshine hours at 11 in January.The wettest month is May with an average of 68mm of rain.elbourne: Annual Weather Averages. January is the hottest month in Melbourne with an average temperature of 21Â°C (70Â°F) and the coldest is July at 10Â°C (50Â°F) with the most daily sunshine hours at 11 in January.