Longfellow House Washington's Headquarters National Historic Site is a National Historic Site in Massachusetts. This guide combines the park's official information with computed sunrise, sunset and Milky Way times, satellite climate data and nearby photo locations.
Sunrise, sunset & golden hour
At Longfellow House Washington's Headquarters the sunrise point swings a long way through the year: about 57° (ENE) at the June solstice and 122° (ESE) in late December. Sunset moves from 304° (WNW) in June to 238° (WSW) in December, and the midday sun climbs to 71° in summer but only 24° in winter.
| Month (15th) | Sunrise | Golden hour ends | Golden hour starts | Sunset | Sunset az. | Daylight |
|---|---|---|---|---|---|---|
| January | 7:12 AM | 7:56 AM | 3:53 PM | 4:37 PM | 242° | 9h 25m |
| February | 6:42 AM | 7:22 AM | 4:38 PM | 5:17 PM | 254° | 10h 35m |
| March | 6:58 AM | 7:35 AM | 6:14 PM | 6:51 PM | 268° | 11h 54m |
| April | 6:04 AM | 6:42 AM | 6:48 PM | 7:26 PM | 284° | 13h 22m |
| May | 5:24 AM | 6:04 AM | 7:19 PM | 8:00 PM | 297° | 14h 36m |
| June | 5:08 AM | 5:51 AM | 7:41 PM | 8:24 PM | 303° | 15h 16m |
| July | 5:21 AM | 6:03 AM | 7:39 PM | 8:21 PM | 301° | 14h 59m |
| August | 5:52 AM | 6:31 AM | 7:09 PM | 7:47 PM | 290° | 13h 55m |
| September | 6:25 AM | 7:02 AM | 6:19 PM | 6:56 PM | 275° | 12h 31m |
| October | 6:58 AM | 7:36 AM | 5:26 PM | 6:04 PM | 259° | 11h 06m |
| November | 6:36 AM | 7:18 AM | 3:42 PM | 4:24 PM | 246° | 9h 48m |
| December | 7:08 AM | 7:53 AM | 3:28 PM | 4:13 PM | 239° | 9h 06m |
Computed for the park's reference point (42.3770, -71.1264); large parks span several minutes of difference.
Milky Way & dark skies
From Longfellow House Washington's Headquarters, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.2 hours on a moonless night), and the core peaks around 19° above the southern horizon. Our light-pollution model puts the sky at about Bortle 9 (inner-city sky), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude |
|---|---|---|---|
| January | Not visible in darkness | — | — |
| February | Not visible in darkness | — | — |
| March | 4:26 AM – 5:16 AM | 0.8 | 15° |
| April | 2:18 AM – 4:18 AM | 2.0 | 18° |
| May | 12:29 AM – 3:19 AM | 2.8 | 19° |
| June | 10:40 PM – 2:50 AM | 4.2 | 19° |
| July | 10:29 PM – 1:29 AM | 3.0 | 19° |
| August | 9:36 PM – 11:26 PM | 1.8 | 18° |
| September | 8:33 PM – 9:23 PM | 0.8 | 15° |
| October | Not visible in darkness | — | — |
| November | Not visible in darkness | — | — |
| December | Not visible in darkness | — | — |
9 Estimated Bortle 9 — Inner-city sky. Only the Moon, planets and a few bright stars are visible.
Weather & best time to visit
New England weather is highly variable. Temperatures in the winter can be very cold with high snowfall. Fall and spring are generally pleasant. Summer temperatures are generally mild, with periods of heat and humidity. However, the house is air conditioned and heated for collection care and the comfort of the visitor.
Weather overview: National Park Service.
Long-term NASA satellite data for this area show September as the clearest month (about 51% average cloud cover) and May as the cloudiest (64%). July is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
Average high (°F)
Photography permits, drones & fees
Permits. Under federal law (54 U.S.C. 100905), still photography in National Park Service areas needs a permit only when it (1) takes place where members of the public are not allowed, (2) uses models, sets or props that are not part of the location's natural or cultural resources or administrative facilities, or (3) would cause the park to incur additional administrative costs to monitor the activity. Ordinary visitor and most landscape photography needs no permit. Commercial filming rules are separate and have changed in recent years — confirm current requirements with the park before a paid shoot.
Drones. Launching, landing or operating unmanned aircraft (drones) is prohibited in National Park Service units under a 2014 Superintendent's closure (36 CFR 1.5), except where a park has issued specific written approval. Flying from outside the boundary over park land can also violate park rules and disturb wildlife.
Getting there
Longfellow House-Washington's Headquarters NHS is located in a residential section of Cambridge, MA. There is very little public parking in the area and onsite parking is limited to vehicles with handicapped parking permits. However, the site is a short walk from Harvard Square, where there are paid parking lots and a station for the MBTA Red Line and numerous bus routes. The use of public transportation to the site is highly recommended. Follow the link for detailed instructions.
Directions: National Park Service.
Activities
- Arts and Culture
- Live Music
- Guided Tours
- Hands-On
- Arts and Crafts
- Junior Ranger Program
- Museum Exhibits
- Shopping
- Bookstore and Park Store
Nearby parks
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