Statistical Analysis of Long-Term Climate Data – Case Study on the Western Part of Romania between 1961 and 2020

Climate change is a reality, manifesting on a global scale, and with variable effects on the environment, human health, performance and socio-economic balances. This study analyzed climate data (temperature, precipitation) over a period of 60 years, between 1961 and 2020. The climate data were recorded in the Western area of ​​Romania, at the Arad Meteorological Station and the Sannicolau Mare Meteorological Station. The multiannual calculated mean value over the study period for temperature (T, °C) was = 10.92±0.11 °C, and the multiannual average value calculated for precipitation (P, mm) was = 564.54±14.17 mm. In the case of temperature, the annual mean values, compared to the multiannual mean value, showed differences between DT = -1.44 °C in the case of 1980 year, and DT = 1.76 °C in the case of 2019 year. In the case of precipitation, the annual values, compared to the multiannual mean value, showed differences between DP = -289.04 mm in the case of 2000 year, and DP = 234.56 mm in the case of 2010 year. In the first half of the interval (1061 – 1990) only three years (1961, 1966 and 1990) presented the annual mean temperature above the multiannual mean, within statistical safety conditions (p