Mount Washington Observatory

Fiscal year ending 2023. Filed on November 8, 2023.

PO Box 2310
North Conway, New Hampshire 03860

Mount Washington Observatory (EIN: 02-0225135) has filed an IRS Form 990 since fiscal year 2017. In its fiscal year 2023 IRS Form 990 filing, Mount Washington Observatory, a 501(c)(3) charitable organization, reported compensation for 3 out of 35 total employees. Among the employees shown here, the average compensation is $71,230. The highest compensated employee at Mount Washington Observatory is Donna Dunn with fiscal year 2023 compensation of $102,424.

Revenue, expenses, and employee compensation

Revenue

$6,202,733

Expenses

$1,892,450

Employee compensation

$1,174,887
Revenue, expenses, and employee compensation over time

Mission Statement

TO ADVANCE UNDERSTANDING OF THE NATURAL SYSTEMS THAT CREATE EARTH'S WEATHER AND CLIMATE. IT SERVES THIS MISSION BY MAINTAINING A WEATHER STATION ON THE SUMMIT OF MOUNT WASHINGTON, PERFORMING WEATHER AND CLIMATE RESEARCH, CONDUCTING INNOVATIVE SCIENCE EDUCATION PROGRAMS, AND INTERPRETING THE HERITAGE OF THE MOUNT WASHINGTON REGION.

Revisions to this organization profile

October 22, 2025:
2025 Mount Washington Observatory 990 filed
September 30, 2024:
2024 Mount Washington Observatory 990 filed
November 8, 2023:
2023 Mount Washington Observatory 990 filed

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