Bangladesh is highly vulnerable to climate change and has faced significant challenges over recent decades, particularly regarding rainfall and temperature variability. These changes have impacted both the environment and the agricultural sector. Many global studies on climate change in Bangladesh utilize climate models to project future scenarios and uncertainties. An analysis of rainfall and temperature data from 1964 to 2016, focusing on the pre-monsoon and monsoon seasons, was conducted using non-parametric methods such as Moving Average and Exponential Moving Average. This study covered the Rajshahi, Rangpur, and Bogra districts, with historical data from the Bangladesh Meteorological Department (BMD). The findings indicate that the average maximum temperature is increasing at 0.0225°C/year in Rajshahi, 0.016°C/year in Rangpur, and 0.0067°C/year in Bogra. Regarding pre-monsoon rainfall, Rajshahi experienced an increase of 0.0311 mm/year, Rangpur 0.0014 mm/year, and Bogra 0.0054 mm/year. Conversely, monsoon rainfall trends showed a decline in Rajshahi by 0.0468 mm/year and in Bogra by 0.0318 mm/year.
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