Seasonal climate summary for the southern hemisphere (winter 2018): fifteenth-warmest and fourteenth-driest
Zhi-Weng ChuaA Bureau of Meteorology, GPO Box 1289, Melbourne, Vic. 3001, Australia. Email: zhi-weng.chua@bom.gov.au
Journal of Southern Hemisphere Earth Systems Science 70(1) 353-372 https://doi.org/10.1071/ES19038
Submitted: 22 April 2020 Accepted: 7 May 2020 Published: 17 September 2020
Journal Compilation © BoM 2020 Open Access CC BY-NC-ND
Abstract
This is a summary of the southern hemisphere atmospheric circulation patterns and meteorological indices for winter 2018; an account of seasonal rainfall and temperature for the Australian region and the broader southern hemisphere is also provided. The climate influences from the El Niño–Southern Oscillation and the Indian Ocean Dipole were weak, with both demonstrating neutral conditions over the season. It was a dry and warm winter for Australia, being the fourteenth-driest and fifteenth-warmest (in terms of mean temperature) in a record of 119 and 109 years respectively. The warm and dry conditions were particularly pronounced over eastern Australia during July. Maximum temperatures were above average while minimum temperatures were below average.
Keywords: Australian climate, ENSO, IOD, seasonal climate summary, seasonal rainfall, seasonal temperature, southern hemisphere climate, southern hemisphere winter, winter climate.
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