Abstract: Climate change is considered one of the major world concerns of present times. Air temperature is the most effective meteorological element for detecting climate change. The aim of this research is to investigate trends of temperature in the period 1941-2000 for Baghdad, Iraq. The trends in temperature including minimum, maximum, and mean monthly means were analyzed using the linear regression method. Data were also subjected to 11-year running mean to detect trends. The nonparametric statistics of Man-Kendall was applied to determine the significance of trends.