Climate trends at Boston (1894–2025)
Boston has experienced notable climate changes over the past century, with a significant warming trend observed from the first decade of records to the most recent. The data from the Blue Hill Cooperative station shows that the average temperature increased from 8.65°C during the period of 1894–1905 to 10.58°C in the last decade (2016–2025), representing a rise of 1.93°C. This warming trend is indicative of broader climate changes affecting the region.
Trend Summary
Over the full observation period from 1894 to 2025, Boston has recorded an average temperature of 9.49°C. The warming trend is evident when comparing the mean temperatures of different decades: the average temperature from 1961 to 1990 was 9.03°C, while from 1991 to 2020 it rose to 9.90°C. The most recent decade (2016–2025) shows an even higher average of 10.58°C, suggesting an acceleration in warming.
Comparing the recent period (2015–2024) to the baseline period of 1890–1900, the average temperature has increased by 1.81°C, highlighting the significant impact of climate change over the past century.
Climate change impacts
The implications of this warming trend are profound. Increased temperatures can lead to more frequent heat waves, prolonged droughts, and shifts in precipitation patterns. These changes can affect local ecosystems, agriculture, and human health, making it essential to understand and address the impacts of climate change in Boston.
Comparison vs National Benchmark and Paris Goals
When compared to the national average for the top 500 cities, which stands at approximately 15.02°C for the period 1991–2020, Boston's average temperature is significantly lower, indicating localized climate variations. Additionally, Boston's temperature is 2.7°C below the benchmark set by Paris climate goals, emphasizing the need for continued efforts to mitigate climate change.
Top-5 Warm Years
- 2012: 11.27°C
- 2023: 11.15°C
- 2024: 11.05°C
- 2020: 10.96°C
- 2016: 10.87°C
The record coldest temperature recorded in Boston was 7.17°C in 1917, showcasing the variability in climate over the years.
For more detailed data, you can access the raw data in CSV or JSON format. Explore more about climate trends in your area using our interactive map.