[Objective] The distribution of climate comfortability and its spatiotemporal variations on the Loess Plateau were studied, and the correlation of comfortable climate with vegetation cover was analyzed, in order to provide insights into the environmental impacts of ecological restoration and the mechanisms for realizing the value of ecological products. [Methods] Based on the daily monitoring data of meteorological stations in the Loess Plateau from 1981 to 2020, the temporal and spatial variation of climate comfortability in the Loess Plateau was evaluated by using the temperature and humidity index. On this basis, the relationship between NDVI and climate comfortability around the site was quantitatively evaluated by using PKU GIMMS NDVI data. [Results] ① The climatic comfort period (very comfortable and comfortable) exceeded 135 days per annum in the central part of the Loess Plateau. The northwest experienced longer summer comfort periods, whereas the southeast experienced longer spring and autumn comfort periods. The northwest exhibited more uncomfortable days annually than the southeast, with fewer days categorized as less uncomfortable or uncomfortable. ② The climatic comfort period on the Loess Plateau accounts for 35.46% of the annual days, primarily from May to September. The period of climate discomfort (relatively comfortable, uncomfortable, and very uncomfortable) accounted for 64.54% of the days in a year and mainly occurred from October to the April of the following year. Extreme discomfort was the predominant climatic comfortability type in the Loess Plateau, representing 27.59% of the total days, mainly occurring from November to February. ③ The degree of climate comfort significantly or highly significantly increased at 85% of the stations on the Loess Plateau (p<0.05), with climate comfortability highly significantly increasing at 66.67% of the stations (p<0.01). The number of comfortable days significantly increased at 21.67% of the stations, with the largest increase occurring at Wutaishan station in Shanxi Province (18.89 days per 10 years). The number of extremely uncomfortable days significantly decreased at 86.67% of the sites, and the number of less comfortable days significantly increased at 56.67% of the sites (p<0.05). The annual NDVI of the Loess Plateau exhibited significant increasing trend from 1982 to 2020, with a significant or highly significant positive correlation between the NDVI and the degree of climate comfortability at 53.33% of the sites. [Conclusion] The climate comfort spatially varied across the seasons on the Loess Plateau from 1981 to 2020. Overall, the climate comfort ability increased in the study area. The increase in NDVI values was synchronized with the increase in climate comfortability. Ecological restoration shows the potential to further elevate regional climate comfortability.