An anonymous reader writes with news that bad weather caused internet connectivity problems for users in Perth, Western Australia on Monday. But it wasn't raging storms or lightning that caused this outage — it was extreme heat. Monday was the 6th hottest day on record for Perth, peaking around 44.4 C (111.9 F). Thousands of iiNet customers across Australia found themselves offline for about six and a half hours after the company shut down some of its systems at its Perth data center at about 4.30pm AEDST because of record breaking-temperatures. ... "[W]e shut down our servers as a precautionary measure," an iiNet spokesman said late Monday night. "Although redundancy plans ensured over 98 per cent of customers remained unaffected, some customers experienced issues reconnecting to the internet." ... Users in Western Australia, NSW, Victoria and South Australia took to Twitter, Facebook and broadband forum Whirlpool to post their frustrations to the country's second largest DSL internet service provider.