Updated October 2026
Longhorn Cavern State Park: Weather by Month and When to Go
Longhorn Cavern State Park is a state park in Texas. The USGS Protected Areas Database maps about 720 acres under its name. Average highs range from 61°F in December and January to 96°F in August.
Average highs sit between 60°F and 80°F in October through April. They run above 80°F in May through September. The figures are NOAA climate normals for 1991–2020, measured at a weather station 7.7 miles from the park.
Warmest average high
96°F
August
Coldest average low
38°F
January
Most precipitation
3.7 in
May
Longest days
14.0 h
June
Longhorn Cavern State Park weather by month
| Month | Average high | Average low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 61°F | 38°F | 1.7 in | 10.2 h |
| February | 64°F | 42°F | 1.6 in | 10.9 h |
| March | 72°F | 49°F | 2.7 in | 11.8 h |
| April | 79°F | 56°F | 2.1 in | 12.8 h |
| May | 85°F | 64°F | 3.7 in | 13.6 h |
| June | 92°F | 71°F | 2.9 in | 14.0 h |
| July | 95°F | 73°F | 1.8 in | 13.8 h |
| August | 96°F | 73°F | 1.8 in | 13.1 h |
| September | 89°F | 68°F | 2.9 in | 12.2 h |
| October | 80°F | 58°F | 3.2 in | 11.2 h |
| November | 69°F | 47°F | 2.3 in | 10.4 h |
| December | 61°F | 40°F | 1.9 in | 10.0 h |
Temperature and precipitation figures are NOAA climate normals for 1991–2020 from station USW00003999, the nearest station with a complete set of temperature normals, 7.7 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month. The acreage is what the USGS Protected Areas Database maps under the park's name. The state's own figure can differ, because the database may hold part of a park under another name.
What the averages show
- Temperature. August is the warmest month, with an average high of 96°F and an average low of 73°F. January is the coldest month, with an average low of 38°F and an average high of 61°F.
- Precipitation. May is the wettest month, averaging 3.7 inches of precipitation, and February is the driest, at 1.6 inches. An average year brings about 28.6 inches in total.
- Snowfall. The station has no snowfall normal, so snowfall is left out of the table. That is a gap in the station's record, not a sign that it never snows here.
- Daylight. Days run from about 10.0 hours of daylight in December to 14.0 hours in June.
Camping, trails, maps and fees
Whether Longhorn Cavern State Park has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
Official Longhorn Cavern State Park page
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
National Weather Service forecast for Longhorn Cavern State Park
Where to stay near Longhorn Cavern State Park
Hotels, cabins and vacation rentals near Longhorn Cavern State Park, with live availability and prices.
Top-rated places to stay near Longhorn Cavern State Park
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Frequently Asked Questions
August is the warmest month, with an average high of 96°F and an average low of 73°F. January is the coldest month, with an average low of 38°F and an average high of 61°F. These are NOAA 1991–2020 climate normals from a weather station 7.7 miles from the park.
Average highs sit between 60°F and 80°F in October through April. They run above 80°F in May through September.
May is the wettest month, averaging 3.7 inches of precipitation, and February is the driest, at 1.6 inches. An average year brings about 28.6 inches in total. The station has no snowfall normal, so no snowfall figure is available.
Days run from about 10.0 hours of daylight in December to 14.0 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Lyndon B Johnson National Historical Park34 miles away
- Waco Mammoth National Monument94 miles away
- San Antonio Missions National Historical Park95 miles away
Nearby state parks
- Inks Lake State Park4 miles away
- Colorado Bend State Park26 miles away
- Pedernales Falls State Park27 miles away
- Blanco State Park41 miles away
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location and acreage; the official Texas state park listing for the park's name.