Located in New Castle County, Delaware, Winterthur Museum, Garden and Library is a botanical garden. It sits roughly 3.0 km (1.9 mi) N of Greenville. It is listed on the National Register of Historic Places.
Winterthur Museum, Garden and Library is an American estate and museum in Winterthur, Delaware. Winterthur houses one of the richest collections of Americana in the United States. The museum and estate were the home of Henry Francis du Pont (1880–1969), Winterthur's founder and a prominent antiques collector and horticulturist. Part of the natural area is old-growth forest and recognized by the Old-Growth Forest Network.From the Wikipedia article “Winterthur Museum, Garden and Library”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Winterthur Museum, Garden and Library the sunrise point swings a long way through the year: about 58° (ENE) at the June solstice and 121° (ESE) in late December. Sunset moves from 302° (WNW) in June to 240° (WSW) in December, and the midday sun climbs to 74° in summer but only 27° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:07 AM | 90° E | 7:15 PM | 271° W | 50° | 12h 08m |
| June solstice (Jun 21) | 5:35 AM | 58° ENE | 8:35 PM | 302° WNW | 74° | 15h 00m |
| September equinox (Sep 22) | 6:51 AM | 89° E | 7:01 PM | 271° W | 50° | 12h 11m |
| December solstice (Dec 21) | 7:21 AM | 121° ESE | 4:42 PM | 240° WSW | 27° | 9h 21m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Gardens are best on bright overcast days or early mornings when dew is fresh and the wind is calm.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:53 AM | 7:23 AM | 8:04 AM | 4:21 PM | 5:02 PM | 5:32 PM | 9h 40m |
| February | 6:28 AM | 6:56 AM | 7:34 AM | 5:01 PM | 5:39 PM | 6:07 PM | 10h 43m |
| March | 6:48 AM | 7:15 AM | 7:51 AM | 6:34 PM | 7:09 PM | 7:36 PM | 11h 55m |
| April | 5:58 AM | 6:26 AM | 7:02 AM | 7:04 PM | 7:41 PM | 8:09 PM | 13h 15m |
| May | 5:18 AM | 5:49 AM | 6:27 AM | 7:32 PM | 8:11 PM | 8:41 PM | 14h 22m |
| June | 5:02 AM | 5:34 AM | 6:15 AM | 7:52 PM | 8:33 PM | 9:06 PM | 14h 59m |
| July | 5:16 AM | 5:47 AM | 6:27 AM | 7:51 PM | 8:31 PM | 9:02 PM | 14h 43m |
| August | 5:46 AM | 6:15 AM | 6:52 AM | 7:23 PM | 8:01 PM | 8:29 PM | 13h 45m |
| September | 6:17 AM | 6:44 AM | 7:20 AM | 6:37 PM | 7:13 PM | 7:40 PM | 12h 29m |
| October | 6:46 AM | 7:13 AM | 7:50 AM | 5:48 PM | 6:25 PM | 6:52 PM | 11h 11m |
| November | 6:19 AM | 6:48 AM | 7:28 AM | 4:08 PM | 4:48 PM | 5:17 PM | 10h 00m |
| December | 6:47 AM | 7:17 AM | 8:00 AM | 3:57 PM | 4:39 PM | 5:10 PM | 9h 22m |
Local time (America/New York), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From Winterthur Museum, Garden and Library, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.8 hours on a moonless night), and the core peaks around 21° above the southern horizon. Our light-pollution model puts the sky at about Bortle 6 (bright suburban sky), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -3° | — |
| February | 5:09 AM – 5:19 AM | 0.2 | 11° | SE → SE |
| March | 4:19 AM – 5:39 AM | 1.3 | 18° | SE → SSE |
| April | 2:16 AM – 4:46 AM | 2.5 | 21° | SE → S |
| May | 12:20 AM – 3:50 AM | 3.5 | 21° | SE → S |
| June | 10:34 PM – 3:24 AM | 4.8 | 21° | SE → SSW |
| July | 10:26 PM – 2:06 AM | 3.7 | 21° | S → SW |
| August | 9:41 PM – 12:01 AM | 2.3 | 21° | S → SW |
| September | 8:44 PM – 10:04 PM | 1.3 | 18° | SSW → SW |
| October | 7:54 PM – 8:04 PM | 0.2 | 12° | SW → SW |
| November | Below 10° in darkness | — | 0° | — |
| December | Below 10° in darkness | — | -19° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 6 Bortle 6 — Bright suburban sky. The Milky Way is only visible near the zenith; the sky glows grey-orange in photos. Modeled zenith brightness ≈ 19.32 mag/arcsec². Aurora needs roughly Kp 7.0+ to show low on the northern horizon here.
Weather & best season
Long-term NASA satellite data for this area show September as the clearest month (about 50% average cloud cover) and December as the cloudiest (63%). 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 (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 67 | 72 | 77 | 91 | 90 | 97 | 102 | 100 | 96 | 95 | 76 | 70 |
| Low °F | 0 | -1 | -3 | 25 | 35 | 46 | 55 | 54 | 43 | 30 | 21 | 10 |
| Precip. (in) | 2.9 | 3.1 | 3.6 | 3.7 | 3.7 | 4.8 | 4.5 | 4.4 | 4.2 | 4.2 | 3.5 | 3.9 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this botanical garden
- Seasonal exhibits (orchids, tulips, cherry blossoms) draw crowds — arrive at opening.
- Kaleidoscopic and abstract images are great for flower close-ups — try the online kaleidoscope tool.
- A macro lens or close-up filter opens a world of detail — try a shallow aperture against a soft background.
- Many gardens restrict tripods or charge for photography; check the rules before you go.
- Backlit petals glow; position yourself so the sun is behind the flower.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Spring bulbs and blossoms, summer perennials and autumn color; glasshouses offer winter subjects.
Suggested gear: Macro lens, Diffuser, Small reflector. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Winterthur Museum, Garden and Library, closest first.
State Park
Covered Bridge
Botanical Garden
Covered Bridge
Covered Bridge
State Park
Botanical Garden
State Park
State ParkFAQ
When is the best time to photograph Winterthur Museum, Garden and Library?
What time is golden hour at Winterthur Museum, Garden and Library?
Where does the sun rise and set at Winterthur Museum, Garden and Library?
Can you see the Milky Way from Winterthur Museum, Garden and Library?
Do you need a permit to photograph at Winterthur Museum, Garden and Library?
How far is Winterthur Museum, Garden and Library from Greenville?
Sources
Location data: Wikidata, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.