The temperature was recorded every one or two weeks throughout
the experimental duration, ranging between 16.7 and 23.3 °C in autumn
(Sep. to Nov. 2013), 4.4–10.2 °C (Dec. 2013 to Feb. 2014) in winter,
13.6–20.5 °C (Mar. to May 2014) in spring and 23.9–30.6 °C in summer
(Jun. to Aug. 2014).