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Blue Hill Observatory & Science Center

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Annual Fund · This Giving Season 51,000 Days.Not One Missed. Every single day since February 1, 1885 — through wars, storms, and…

Annual Fund · This Giving Season

51,000 Days.
Not One Missed.

Every single day since February 1, 1885 — through wars, storms, and pandemics — someone has climbed Great Blue Hill and recorded the weather. Help us make sure that never stops.

51,000+ Unbroken Days
140+ Years of Data
10,000+ Annual Visitors
2,500+ Youth Served/Year
$100K Goal This Season

As federal science funding erodes, Blue Hill Observatory stands at a crossroads. We hold North America's longest continuous weather record — data that NOAA, NASA, and leading universities rely on. That record doesn't maintain itself. It takes people who believe the past 140+ years are worth protecting.

Give Today See Giving Levels ↓
"The most homogeneous climate record in North America."
— World Meteorological Organization

Join Our Community of Supporters

Every gift level comes with meaningful recognition and access.

Observer

Observer

$1,000 – $9,999
  • Named in our Annual Report
  • Invitation to Donor Reception
  • Exclusive Observatory access
Most Impactful

Guardian

$10,000 – $49,999
  • All Observer benefits
  • Private guided tour
  • Recognition on donor wall
Founder

Founder

$50,000+
  • All Guardian benefits
  • Named endowment opportunity
  • Seat at annual science briefing

Your Gift in Action

Every dollar goes directly to protecting the science and the people who make it possible.

$1,000

Sponsors a full-day STEM field trip for a class of 25 students

$7,500

Funds one full month of daily weather observations and data archiving

$10,000

Supports a semester of professional development for 20 educators

$25,000

Underwrites a half year of public programming and community events

$50,000

Enables a major equipment upgrade for continued research accuracy

$100,000+

A transformational leadership gift to protect and preserve the observation program – contact us directly to discuss naming and legacy opportunities tailored to your vision

Why This Moment Matters

Rising Urgency

Climate change is no longer abstract — communities need trusted local data now more than ever. Blue Hill is one of the only places that can provide it.

140+ Years on the Line

Without sustained philanthropic support, this irreplaceable record faces real risk. There is no backup. There is no substitute.

Capacity to Grow

With renewed investment, BHO can expand programs, hire staff, and modernize the infrastructure that keeps the record alive.

Proven Track Record

141 years. Not one day missed. Your investment is backed by an unmatched record of commitment to science.

What Your Donation Sustains

  • North America's longest continuous weather record — 51,000+ unbroken days from the same hilltop, an irreplaceable baseline for climate change research used by NOAA, NASA, and universities worldwide.
  • A National Historic Landmark — one of only 6 WMO Centennial Climate Stations in the U.S., with 635 ft of elevation and a view stretching 10 miles to the Atlantic coast.
  • Daily scientific observation — our Chief Observer and Chief Scientist publish daily, monthly and annual analysis distributed to meteorologists, researchers, and the public.
  • Thousands of young people a year inspired through hands-on STEM and climate science programming across 100+ New England schools.
  • Strategic partnerships with NOAA, NASA, MIT, the American Meteorological Society and the Museum of Science.

Ways to Give

Every gift matters. Choose the giving method that works best for you.

Most Common

Give Online

Secure donation page — no account required. All major credit cards accepted.

Donate Now →

By Phone

Call to Donate

Credit card donations accepted by phone during regular office hours.

(617) 696-0562

By Mail

Send a Check

Make checks payable to Blue Hill Observatory Science Center

1 Observatory Service Rd
Milton, MA 02186

Securities

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Trusted by the world's leading institutions

NOAA NASA MIT World Meteorological Organization National Park Service American Meteorological Society Mount Washington Observatory Museum of Science MA Dept. of Conservation & Recreation
Candid Platinum Transparency 2026

Candid Platinum
Transparency 2026

Candid Platinum Transparency rating — the highest level of nonprofit accountability. Every dollar you give is tracked, reported, and put to work.

501(c)(3) · Tax ID: 22-2517414 · All gifts are fully tax-deductible.
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