On 27 January 2012, the temperature in reactor 2 was at 45 Celsius (113 Fahrenheit). On 05 February it’s at 73.3 Celsius (163.9 Fahrenheit).

Tokyo Electric (now effectively state owned due to running out of money) reports that the rise in temp could be due to some recent plumbing work.  Hello!

Another problem is that two separate thermometers are giving cooler temp readings, so they’re not sure which ones to believe.  To be safe they’re going with the higher temp readings.

TEPCo is now pumping 10.6 tons of water per hour, trying to keep the General Electric designed Fukushima Daiichi Reactor 2 from overheating.