[3] Dupigny-Giroux earned her Bachelor of Science degree from the University of Toronto in 1989, double majoring in physical geography and development studies.

Her doctoral degree was in climatology and geographic information systems (GIS), with a thesis on drought and rainfall over northern Brazil.

Early in her graduate studies, Dupigny-Giroux spent a summer at the National Center for Atmospheric Research (1990) analyzing rainfall and runoff data using spectral analysis methods with Warren Washington and Harry van Loon and later (1992) participated in the National Oceanic and Atmospheric Administration (NOAA) colloquium on operational and environmental prediction, where she learned techniques in climate monitoring, weathering analysis, and hydrologic and oceanographic prediction.

She assists other state agencies in preparing for and adapting to current and future impacts of climate change on Vermont's transportation system, emergency management planning, and agriculture and forestry industries.

For example, she has published analyses of the impacts of climate change on the health of Vermont's sugar maples, a hardwood species of key economic and cultural importance to the state.

Watching students mature and flourish in their four years with us is a great privilege and the best part about being a teacher-scholar here at UVM [University of Vermont].”[3] Lesley-Ann Dupigny-Giroux is the co-founder of the Diversity Climate Network (D-ClimNet),[26] which was funded by a National Science Foundation (NSF) award (2009-2013) to enhance diversity, equity, and inclusion in the field of climatology.