Blue Hill Observatory June 2025 Summary: June temperature was well above average with much below normal rainfall and average sunshine. The approximated 24-hour mean temperature for the month of 68.1 deg F was 3.8 degrees warmer than the 1891-2020 130-year average for June, and it was 2.4 degrees warmer than the 1991-2020 30-year average. The… Read More »
Blue Hill Observatory Spring (Mar-May) 2025 Summary: Spring 2025 temperature and precipitation were well above average with much less snowfall and less sunshine than expected. The approximated 24-hour mean temperature for spring of 49.0 deg F was 4.1 degrees warmer than the 1891-2020 130-year average for the season, and it was 2.6 degrees warmer than… Read More »
Blue Hill Observatory May 2025 Summary: May 2025 was warmer and much wetter than average with much less sunshine than expected. The approximated 24-hour mean temperature for the month of 57.4 deg F was 1.9 degrees warmer than the 1891-2020 130-year average for May, and it was 0.7 degrees warmer than the 1991-2020 30-year average.… Read More »
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.
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Learn more about the Observatory's observations through graphics, text summaries and data.
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BHO provides many science programs for educators, students and the general public.
Visit the Observatory on Great Blue Hill to learn about climate and weather or tour our historic facility.
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P.O. Box 187, Readville, MA 02137
