Guardian: The spring of 2013 has been Australia’s warmest on record. Mean temperatures for the season were 1.57C above the 1961-1990 average, surpassing the previous record of 1.43C (set in 2006) by 0.14C. Daytime maximum temperatures were also the highest on record, coming in 2.07C above average and 0.24C above the previous record (also set in 2006), while overnight minimum temperatures were the fourth-warmest on record.
The warmth was most dramatic in September, which saw a mean temperature anomaly of…

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