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Public Tours

We have resumed our regular hours
Saturdays and Sundays unless weather is dangerous: 10:00AM-4PM
We are open Monday on all Federal Holidays and Patriot's Day: 10AM-4PM
Tours and Programs by appointment any day 8:30 to 5:30 Year-Round
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Weather Summaries

January 2020 Summary – Eighth Driest and Ninth Warmest on Record

January 2020 Summary – Eighth Driest and Ninth Warmest on Record

Blue Hill Observatory January 2020 Summary: January was generally very warm with much less precipitation and snowfall than average. The 24-hour adjusted mean temperature for the month of 32.8 deg F was 7.1 degrees warmer than the 120-year average for January and 6.6 degrees warmer than the 1981-2010 30-year average. The month ranked as the […]

| February 7, 2020 | Reply
2019 Was Warmer and Wetter Than Average

2019 Was Warmer and Wetter Than Average

The year 2019 ended with a 24-hour corrected mean temperature of 49.2F, which was 1.6F warmer than the 120-year (1891-2010) long-term mean and 0.3F above the 30-year (1981-2010) normal. The annual average maximum temperature of 58.0F was 1.1F warmer than the long-term mean, while the annual average minimum temperature of 41.0F was 1.2F warmer than […]

| January 20, 2020 | Reply

What's Happening on the Hill

Blue Hill Observatory Begins Earthquake Monitoring

Blue Hill Observatory Begins Earthquake Monitoring

Blue Hill Observatory has been watching the weather since 1885, and Boston College’s Weston Observatory has been watching the Earth quake since 1931. We are now joining forces to monitor the Earth with a recently installed seismograph at Blue Hill. In collaboration with Dr. Alan Kafka, Director of Weston Observatory, Blue Hill purchased and installed […]

| February 11, 2020 | Reply
A Grand Achievement—Blue Hill Observatory’s Unbroken 135 Year Recording of the Weather—Help Us Celebrate!

A Grand Achievement—Blue Hill Observatory’s Unbroken 135 Year Recording of the Weather—Help Us Celebrate!

Imagine, Blue Hill Observatory’s first weather observations were made on February 1, 1885 at the top of Great Blue Hill— from that day on we have maintained an unbroken recording of the weather! Considered a remarkable resource, Blue Hill Observatory’s data is the most homogeneous climate record in North America and is a benchmark station […]

| February 3, 2020 | Reply
Announcing Blue Hill Observatory’s 2020 Summer Workshop: “Launch Your Weather Career”

Announcing Blue Hill Observatory’s 2020 Summer Workshop: “Launch Your Weather Career”

This summer’s workshop  is designed for students who enjoy learning about the weather and who might like a career in meteorology/ atmospheric science. While it is recommended for students between the ages of 14 and 18  years old, others may apply. The workshop will be held during the week of July 13th and July 18th, […]

| January 24, 2020 | Reply
For Our Children, For Us! Please Make the Blue Hill Observatory Your Priority this Giving Season

For Our Children, For Us! Please Make the Blue Hill Observatory Your Priority this Giving Season

For Our Children, For Us! As we reflect on all that we do each year—and our impact—we recognize our legacy begins with our children and their knowledge of the weather and how to leverage that knowledge to ensure humankind and the Earth thrive for generations to come.  Through their excitement and curiosity in climate science we […]

| November 18, 2019 | Reply
July 2019 Cape Cod Tornado Report

July 2019 Cape Cod Tornado Report

Several EF0 and EF1 tornadoes struck Cape Cod on July 23, 2019 and caused considerable damage. The report below provides a synopsis of the tornadoes and their impact on Cape Cod. This report can also be viewed and downloaded here.    

| August 23, 2019 | Reply