Air temperatures consistently increased from June to August during the summer and slightly decreased at the beginning of September. Mean monthly temperatures were typical for Toronto's temperate climate. Relative humidity elevated during the night and dropped during midday. The wind speed and the relative humidity had similar averages in each summer month, but the wind speed remarkably rose in September. Table 4 summarizes the results of monitoring the meteorological parameters and their statistics over the summer season until the beginning of the fall.