Bernheim Arboretum and Research Forest

Park Large arboretum and research forest with trails

Large arboretum and forest south of Louisville with miles of trails, curated tree collections and outdoor sculptures-used for hiking, birdwatching and educational programs about forestry and conservation.

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Bernheim Arboretum and Research Forest is a large conservation and learning landscape in Kentucky that combines cultivated arboretum collections with extensive managed forest. The property covers more than 16,000 acres and serves conservation, education and recreation purposes.

Within the property are formal and informal arboretum plantings, demonstration gardens, trails and interpretive exhibits that introduce regional ecology and horticulture. Visitors can access trailheads, a visitor center and a variety of walking routes through planted and native forest areas.

The site supports research and education programs in forestry, native-plant conservation and public outreach, and hosts seasonal events and guided walks. The mixture of cultivated displays and large tracts of managed forest is a defining feature.

The forest and arboretum were established through the philanthropy of Isaac W. Bernheim in the early 20th century and have been expanded and managed for public benefit and scientific study since then. The property has been developed to balance public access with habitat protection.

Bernheim is located south of Louisville, Kentucky, in predominantly rural terrain; the site is accessible by road and serves the greater Louisville metropolitan area.

  • Size and scope: The property covers more than 16,000 acres of arboretum and research forest with an extensive network of trails and public programs.
  • Founding and purpose: The site was established by philanthropist Isaac W. Bernheim and combines cultivated collections with protected native forest and research projects.

What to See #

  • Visitor Center: The Isaac W. Bernheim Visitor Center houses exhibits on the forest's history, conservation work and trail information for visitors.
  • Trails and forest areas: Named walking and driving trails lead through cultivated arboretum plantings and extensive mixed hardwood forest across the property's large acreage.
Bernheim Arboretum and Research Forest
37.9001, -85.6250

How to Get to Bernheim Arboretum and Research Forest #

Bernheim is located about 25 miles south of Louisville, Kentucky, near Clermont. From I‑65 take KY‑245 toward Shepherdsville and follow local signage to Bernheim Arboretum; there is on‑site parking and several clearly marked visitor entrances.

Tips for Visiting Bernheim Arboretum and Research Forest #

  • Download a trail map before visiting; the forest is large and some trails are little used.
  • Visit the Leon C. Perry Interpretive Center for rotating exhibits and staff-led programs.
  • Arrive early on weekends - parking at popular trailheads fills quickly.

Best Time to Visit Bernheim Arboretum and Research Forest #

Spring and autumn are particularly pleasant; summer hosts the most programming and visitors.

Spring
April-June · 8-24°C (46-75°F)
Wildflowers and ephemeral spring growth; many interpretive walks offered.
Summer
June-August · 20-32°C (68-90°F)
Full leaf canopy provides deep shade; a busy season for events and art installations.
Autumn
September-November · 6-20°C (43-68°F)
Fall color and quieter trails; excellent conditions for longer hikes.

Weather & Climate near Bernheim Arboretum and Research Forest #

Climate

Bernheim Arboretum and Research Forest's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in July) and cold winters (coldest in January). Temperatures range from -4°C to 30°C. Abundant rainfall (1242 mm/year), wettest in May.

Temperature & Rainfall
Temperature Range
31°
Warmest Month
-4°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 5°C and lows of -4°C. Regular rainfall (85 mm).

Comfort

Feels Like Cold
C
Temperature
-4°

Weather

85 mm
Rainfall
3.9 m/s
Wind
Light Breeze

February

February is cold with highs of 8°C and lows of -3°C. Regular rainfall (96 mm).

Comfort

Feels Like Cold
C
Temperature
-3°

Weather

96 mm
Rainfall
3.8 m/s
Wind
Light Breeze

March

March is cold with highs of 14°C and lows of 2°C. Significant rainfall (120 mm).

Comfort

Feels Like Cold
C
Temperature
14°

Weather

120 mm
Rainfall
4.0 m/s
Wind
Light Breeze

April

April is cool with highs of 20°C and lows of 6°C. Significant rainfall (115 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
20°

Weather

115 mm
Rainfall
3.9 m/s
Wind
Light Breeze

May

May is cool with highs of 24°C and lows of 11°C. The wettest month with heavy rain (125 mm).

Comfort

18°
Feels Like Cool
18°C
Temperature
11° 24°

Weather

125 mm
Rainfall
3.2 m/s
Wind
Light Breeze

June

June is mild with highs of 28°C and lows of 16°C. Significant rainfall (103 mm).

Comfort

22°
Feels Like Mild
22°C
Temperature
16° 28°

Weather

103 mm
Rainfall
2.8 m/s
Wind
Calm

July

July is the warmest month with highs of 30°C and lows of 18°C. Significant rainfall (124 mm).

Comfort

24°
Feels Like Warm
24°C
Temperature
18° 31°

Weather

124 mm
Rainfall
2.5 m/s
Wind
Calm

August

August is mild with highs of 30°C and lows of 17°C. Regular rainfall (95 mm).

Comfort

24°
Feels Like Mild
24°C
Temperature
17° 30°

Weather

95 mm
Rainfall
2.4 m/s
Wind
Calm

September

September is mild with highs of 26°C and lows of 14°C. Regular rainfall (90 mm).

Comfort

20°
Feels Like Mild
20°C
Temperature
14° 26°

Weather

90 mm
Rainfall
2.5 m/s
Wind
Calm

October

October is cool with highs of 20°C and lows of 7°C. Moderate rainfall (75 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
20°

Weather

75 mm
Rainfall
2.8 m/s
Wind
Calm

November

November is cold with highs of 14°C and lows of 3°C. Significant rainfall (102 mm).

Comfort

Feels Like Cold
C
Temperature
14°

Weather

102 mm
Rainfall
3.5 m/s
Wind
Light Breeze

December

December is cold with highs of 8°C and lows of -2°C. Significant rainfall (112 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

112 mm
Rainfall
3.7 m/s
Wind
Light Breeze

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