Evaluation of Monthly Maximum, Minimum and Average Temperature Changes Observed for Many Years in Nevsehir Province of Turkey In this research, minimum, maximum and average temperature values between 1970 and 2019 in Center of Nevşehir Province, Ürgüp and Avanos districts in Turkey were examined. Sperman Rho and Mann Kendall statistical correlation tests were used in the analysis phase. As a result, the trends of temperature changes in years are revealed. According to trend analysis results, the average minimum temperature for long years in Avanos district is calculated as -1.20 °C. Maximum temperature is 26,6 °C and the average of all temperature values is 12.18 °C. The average minimum temperature for many years in center of Nevsehir province is calculated as 1.99 0C, the maximum temperature is 24 0C and the average of all temperature values is calculated as 10.73 0C. In Ürgüp district, the minimum temperature for long years was calculated as -4.20 0C, the maximum temperature is 18.48 0C, and the average of all temperature values are 10.32 0C. As a results; It has been observed that there were increasing trend in years of spring, winter, autumn and summer in Nevsehir province and No trend was observed in Avanos and Ürgüp districts at maximum temperature values. While increasing trend is observed in Avanos district and Nevşehir Province in minimum temperature parameters, no change was observed in Ürgüp district. Increasing changes were observed in the average temperatures in all districts. Key words: Temperature, Global Climate Change, Trend Analysis, Nevsehir Province, Turkey