The Blue Hill Observatory is seeking individuals—with a passion for community service—to become volunteer tour guides. In this role, volunteers will give tours of the Observatory’s historic landmark weather observation station—1 of only 11 in the country. Volunteer tour guides will lead visitors through the Observatory, highlighting a 140-year continuous “Weather Observation Program,” along with… Read More »
The Blue Hill Observatory and Science Center at the summit of Great Blue Hill will be closed to the public all day on Saturday, February 8th, 2025 due to a private function. There will be no public tours and no public access to the building on that day. The Observatory will also be closed for… Read More »
The Blue Hill Observatory and Mount Washington Observatory invite you to a special presentation by Ty Gagne of his new book “The Lions of Winter: Survival and Sacrifice on Mount Washington.” Learn about Gagne’s unique process of research and storytelling, as well as the weather and climate science shaping our understanding of avalanches in the… Read More »
Join us at the Blue Hill Observatory July 14 to July 19, 2025 for an expansive introduction to meteorology that includes an exploration of 21st century career opportunities with Tim Kelley, a veteran meteorologist and weather historian. Our summer meteorology program is for students who have an interest in the weather and wish to explore… Read More »
The year 2024 was exceptionally warm and tied as the third warmest on record. The approximated 24-hour mean temperature of 51.3F was 3.5F warmer than the 130-year (1891-2020) long-term mean and 1.8F above the 30-year (1991-2020) average. All twelve months were warmer than the long-term mean. The annual average maximum temperature of 60.5F, which tied… Read More »
Blue Hill Observatory December 2024 Summary: December temperature was above average with more rainfall and much more sunshine than expected. The approximated 24-hour mean temperature for the month of 32.9 deg F was 2.8 degrees warmer than the 1891-2020 130-year average for December, and it was just 0.1 degrees warmer than the 1991-2020 30-year average.… Read More »
Donate today to support our Observing Program in the New Year!
Blue Hill Observatory Fall (Sep-Nov) 2024 Summary: Fall 2024 temperature was much above average, and there was much less precipitation and much more sunshine than expected. The approximated 24-hour mean temperature for fall of 54.6 deg F was 3.5 degrees warmer than the 1891-2020 130-year average for the season, and it was 2.1 degrees warmer… Read More »
Blue Hill Observatory November 2024 Summary: November temperature was much above average with less rainfall and much more sunshine than expected. The approximated 24-hour mean temperature for the month of 45.8 deg F was 5.1 degrees warmer than the 1891-2020 130-year average for November, and it was 3.7 degrees warmer than the 1991-2020 30-year average.… Read More »
How We Serve the Community
Learn more about the Observatory's observations through graphics, text summaries and data.
BHO sponsors conferences, events and special activities to engage the community about science.
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.
Members receive receive free tours, gift shop discounts, program admission, and help support our important mission.
1 Observatory Service Road, Milton, MA 02186
