As the climate continues to change, extreme heat events (EHE) are expected to increase in terms of intensity, duration and frequency by the end of the century and it is expected that the health impact will be significant in terms of heat\related morbidity and deaths. In order to build resiliency to EHE among individuals and communities in Canada, the association between morbidity and heat was analysed using daily emergency medical services (EMS) and heat\related variables (daily maximum temperature and Humidex) observed during the summers of 2009 and 2010 in Winnipeg (Manitoba, Canada) and in Assiniboine regional health authority (ARHA), a rural area located in south\west Manitoba. The findings of this study should provide increased understanding of the impact of heat on health and support public health and emergency management officials in the implementation of a heat alert and response system in these areas. The results showed a significant correlation between EMS and heat\related variables measured during the summer of 2010, where more hot and humid days were observed compared to 2009. It was also found that EMS increase above a threshold value of temperature and Humidex.