Antietam National Battlefield in April
April at Antietam National Battlefield averages a daytime high near 65°F and an overnight low around 39°F, with about 3.6" of precipitation. Visitation runs about 1× the park's average month, which makes April an average month here.
- Average low
- 39°F
- Average high
- 65°F
Range across the year: 21°F to 86°F
- Precipitation
- 3.6 in
- Daylight
- 13.0 hours
Roughly 8% of the park's yearly visitors come in April: about 19,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes April the 7th-busiest of the park's twelve months, sitting between the July peak (2×) and the January low (0.2×).
On our Best Time to Visit score April rates 54/100 ("Fair"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 52°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 4.9 miles from the park.
Because June, July and August together draw about 39% of annual visitors, choosing April instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 13 hours of daylight in April to explore — between the 9.2-hour midwinter low and the 14.8-hour summer high.
Park-wide, 2024 drew 197,340 recreation visits, up 28.5% from 153,560 in 2023.
Across the past decade overall visitation has eased about 60.5%, so April may feel a touch quieter than it once did.
How April compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| March | 53°F / 29°F | 0.6× Quiet | 47 Fair |
| April | 65°F / 39°F | 1.0× Average | 54 Fair |
| May | 74°F / 49°F | 1.3× Busy | 58 Fair |
All twelve months at Antietam, with the best time to visit.
Things to do at Antietam in April
The National Park Service tags 4 Antietam activities for spring. Each links to the park's own page for it.
- Take a short hike on the Tidball Trail · 20-60 minutes
- Take a Short Walk on the Antietam Remembered Trail · 10-45 minutes
- The Union Advance Trail at Antietam · 30-90 minutes
- Visit Antietam National Battlefield Visitor Center · 20 minutes
Frequently Asked Questions
April averages a daytime high near 65°F and an overnight low around 39°F at Antietam National Battlefield, with about 3.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 4.9 miles from the park, so conditions inside the park can differ, especially at other elevations.
April is average at Antietam National Battlefield (about 1.0× the average month). Our best-time score rates it "Fair" at 54/100. Our recommended month is September.
The busiest month is July and the quietest is January. April sits at about 1.0× the park's average, or 8% of annual visitation.
A typical April sees about 19,000 recreation visits at Antietam National Battlefield, based on National Park Service monthly counts from 1979–2025.
Where to stay near Antietam in April
Booking a April trip to Antietam National Battlefield? Compare hotels, cabins and vacation rentals near the park with live April availability and prices.
Top-rated places to stay near Antietam
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in April.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.