Our mission is to foster public understanding of Earth’s weather, climate, and environmental systems and to continue to produce, maintain, and analyze a meticulous, consistent record of weather and climate observations.


The Blue Hill Observatory is a National Historic Landmark and is recognized as a Centennial Observing Station by the World Meteorological Organization. There are only 11 in the U.S.

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For 141 years, Blue Hill Observatory has stood watch over our changing skies—recording, analyzing, and preserving climate data that scientists, educators, and communities rely on worldwide.

As climate challenges accelerate, Blue Hill Observatory’s role has never been more essential. On this important anniversary your support is needed to help safeguard an irreplaceable record and the future it informs.

A gift in any amount will help help to maintain our historic weather instruments, climate record archives, along with our highly skilled team of weather observers. Thank you!

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A SPECIAL INCENTIVE TO GIVE!

In conjunction with his retirement as Executive Director for 25-years, Charles Orloff published a new history book about the Blue Hill Observatory.

Contribute $80 or more and you will receive a signed copy. 

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About the book—"The Blue Hill Observatory: Its Illustrious Past and Promising Future"

From the book cover—"This is the story of the most historic weather observatory in North America and the remarkable scientists who unraveled the many mysteries of the sky. Infused with memorable photos and captivating prose, it relates the inspiring story of Blue Hill Observatory, founded by Abbott Lawrence Rotch in 1885, and the numerous pioneering weather experiments and historic discoveries that laid the foundation for the field of meteorology today."

The Blue Hill Observatory 1-minute promo