Blue Hill Observatory September 2021 Summary: September was very warm and wetter than average. The 24-hour adjusted mean temperature for the month of 64.8 deg F was 3.3 degrees warmer than the 1891-2020 130-year average for September, and it was 1.7 degrees warmer than the 1991-2020 30-year average. The month tied with 2018 as the… Read More »
Blue Hill Observatory August 2021 Summary: August was very warm and wetter than average. The 24-hour adjusted mean temperature for the month of 72.6 deg F was 4.3 degrees warmer than the 1891-2020 130-year average for August, and it was 2.3 degrees warmer than the 1991-2020 30-year average. The month tied with 2012 as the… Read More »
Blue Hill Observatory July 2021 Summary: July was very cool and very wet with much less sunshine than average, and July set a new record for the greatest number of days with measurable rainfall in any month. The 24-hour adjusted mean temperature for the month of 67.9 deg F was 2.1 degrees cooler than the… Read More »
After making landfall in Florida and moving over much of the East Coast of the United States over the past two days, Tropical Storm Elsa crossed southeastern New England on Friday, July 9, 2021 and passed approximately 40 miles to the southeast of the Observatory at mid-day. Torrential rain arrived early in the morning, and… Read More »
Blue Hill Observatory June 2021 Summary: June was the warmest on record, and it was much drier and sunnier than average. The 24-hour adjusted mean temperature for the month of 70.0 deg F was 5.7 degrees warmer than the 1891-2020 130-year average for June, and it was more than 4 degrees warmer than the 1981-2010… Read More »
Blue Hill Observatory May 2021 Summary: May was generally warmer and wetter than average. The 24-hour adjusted mean temperature for the month of 57.7 deg F was 2.2 degrees warmer than the 1891-2020 130-year average for May, and it was 1.0 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of 68.1 deg… Read More »
In June you will have an opportunity to virtually meet, Eric J. Dolin, who will present his recent book, “A Furious Sky: The Five-Hundred Year History of America’s Hurricanes.” As always, Tim will lead a lively Q & A session following the presentation. Eric J. Dolin is an American author who writes history books, which… Read More »
Blue Hill Observatory April 2021 Summary: April was warmer and much sunnier than average. The 24-hour adjusted mean temperature for the month of 47.0 deg F was 2.1 degrees warmer than the 1891-2020 130-year average for April, and it was 0.7 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of 57.2 deg… Read More »
We are challenging our Greater Boston community to climb up Blue Hill to the Observatory and be counted literally as a supporter of Mother Earth. Beginning on Earth Day, April 22 through Sunday, April 25 from 10am to 4pm, we are inviting our community to climb Great Blue Hill and to stop by the Observatory to… Read More »
A strong coastal storm combined with anomalously cold temperatures to bring a record breaking snowfall and more than two inches of much needed liquid precipitation to the summit of Great Blue Hill on April 16th, 2021. Rain began during the night, and snow started mixing with rain just before the 7AM EST observation. By 7:30AM, the… 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
