Local scale climate change variability in New England, United States

Climate change analyses and subsequent communications largely focus on the global and continental spatial scales while most individuals experience climate change at the state and local scales. The aggregation of local weather data into broader spatial scales causes local trends to be lost or poorly represented. This study examines climate trends for the New England region of the United States from 1940 to 2019 at the local scale to determine how they match or differ from the trends described for the region from studies at broader spatial scales. An observed increase in precipitation and average minimum temperature matches previous studies when aggregated for the New England region, but mask local variation of the variables. The increase in precipitation is greatest in upland areas and some local areas have not observed increased precipitation. Average minimum temperature has broadly increased in the region, but not universally, and average temperature and maximum temperature show weaker increasing trends along with local variation. The variation of climate trends at the local scale highlights the need for clear communication of climate change that emphasizes the spatial scale of specific statements and the acknowledgment of different observed experiences at different scales.