March 2025 Summary – Warmer Than Average

Blue Hill Observatory March 2025 Summary: March was much warmer than normal, with average precipitation and record low snowfall. The approximated 24-hour mean temperature for the month of 40.2 deg F was 5.7 degrees warmer than the 1891-2020 130-year average for March, and it was 4.4 degrees warmer than the 1991-2020 30-year average. The month… Read More »

Winter 2024-2025 Summary – Eighth Sunniest on Record

Blue Hill Observatory Winter (December-February) 2024-2025 Summary:  Winter 2024-2025 was cool with average precipitation, much less snowfall, and much more sunshine than expected. The approximated 24-hour mean temperature for the season of 28.8 deg F was 1.3 degrees warmer than the 1891-2020 130-year average for winter, and it was 0.9 degrees cooler than the 1991-2020… Read More »

State of the Climate at Blue Hill Observatory: 1885-2024

This report is an updated summary of the extensive climate records of the Blue Hill Observatory that focuses on the daily climate data for several key parameters over the entire period of record. This document is also available as a downloadable PDF file.