ترجمه انگلیسی در حدود **۲۷۰ کلمه**:

Thermal comfort, as one of the key components of climatic design, plays a decisive role in improving quality of life, protecting human health, and optimizing energy consumption. Given the climatic diversity and geographical characteristics of Kermanshah Province, the accurate determination of thermal comfort ranges requires the analysis of climatic data and the application of valid bioclimatic indices. The aim of this study is to investigate the thermal comfort conditions of Kermanshah Province using three indices: De Martonne, Köppen, and Givoni, based on data from nine meteorological stations during the statistical period of 2012 to 2021.

In terms of methodology, climatic data including temperature, relative humidity, and precipitation were first obtained from the Iran Meteorological Organization and then analyzed using statistical methods and bioclimatic charts. The results of the De Martonne index showed that most stations are classified as semi-arid. According to the Köppen climate classification, six stations fall within the cold semi-arid climate group (BSk), three stations are classified as hot semi-arid climate (BSh), while only the Sonqor station is placed in the temperate climate group (C).

The findings derived from the Givoni method indicate that the number of months with complete thermal comfort varies from one month in Qasr-e Shirin to five months in Kangavar. In all stations, December, January, and February fall within the cold discomfort zone due to low temperature and relatively high humidity. Overall, the results of this research reveal considerable climatic diversity across Kermanshah Province and demonstrate a reasonable consistency among the three applied methods. Moreover, it was found that stations with warmer climatic conditions have the lowest number of thermally comfortable months. These findings can be used in climatic architectural design, urban planning, and regional energy management.