Figure 2

Average temperature in summer 2008 and 2010 recorded by data-loggers #3 and #4 (room 4). Day 0 corresponds to July 20^th 2008 (dashed trajectory) and July 20^th 2010 (continuous). A moving average with a window size of 48 data (i.e., one day) was applied to smooth both time series. The time frame from day 25 to 42 (highlighted in gray color) presents a similar average temperature in both years.