Among the numerous ecosystem services wetlands offer, their ability to provide peripheral surface temperature cooling has gained increasing traction as a climate adaptation strategy for heat mitigation. While a mounting body of literature is available for quantifying the extent and magnitude of cooling that wetlands provide for urban and peri-urban areas, few studies consider their impact in an agricultural context. Here, we quantified both cooling magnitude and extent for four wetlands situated within the Prairie Pothole Region of Canada, comparing results with those from organic and conventional cropland sites. Based on Landsat-8 imagery collected from 2021-2024, we used successive ring buffers to determine the median surface temperature at 10 m intervals up to a distance of 2 km from site boundaries during the summer (June-August). We then used the 2023 Canadian Annual Crop Inventory to compare the 2021-2024 median summer surface temperature between land use types in a 2 km radius from wetland sites. We observed consistent peripheral cooling across wetland sites, which varied greatly in extent (80 to 460 m) and magnitude (1.3 to 16.7 °C) as a function of wetland characteristics. Meanwhile, we observed peripheral warming for both organic (80 m; 2.3 °C) and conventional (100 m; 2.5 °C) cropland sites. We observed lower surface temperatures for water and wetland classes compared to surrounding land uses. The results of this research highlight the significance of wetlands to farmers situated in the periphery of these ecosystems, which provide substantial reductions in surface temperature for crop production during summer months.