Updated October 2026
Grandfather Mountain State Park: Weather by Month and When to Go
Grandfather Mountain State Park is a state park in North Carolina. The USGS Protected Areas Database maps about 3,000 acres under its name. Average highs range from 37°F in January to 72°F in July.
Average highs sit between 60°F and 80°F in May through September. They stay below 60°F in October through April. The figures are NOAA climate normals for 1991–2020, measured at a weather station 1.8 miles from the park.
Warmest average high
72°F
July
Coldest average low
21°F
January
Most precipitation
6.5 in
September
Longest days
14.4 h
June
Grandfather Mountain State Park weather by month
| Month | Average high | Average low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 37°F | 21°F | 5.0 in | 9.8 h |
| February | 40°F | 23°F | 3.9 in | 10.7 h |
| March | 46°F | 29°F | 5.4 in | 11.7 h |
| April | 55°F | 38°F | 5.9 in | 12.9 h |
| May | 62°F | 47°F | 6.1 in | 13.9 h |
| June | 69°F | 54°F | 6.4 in | 14.4 h |
| July | 72°F | 58°F | 6.2 in | 14.2 h |
| August | 71°F | 57°F | 5.8 in | 13.4 h |
| September | 66°F | 52°F | 6.5 in | 12.2 h |
| October | 57°F | 42°F | 5.0 in | 11.1 h |
| November | 48°F | 32°F | 4.2 in | 10.0 h |
| December | 42°F | 26°F | 4.5 in | 9.6 h |
Temperature and precipitation figures are NOAA climate normals for 1991–2020 from station USC00313565, the nearest station with a complete set of temperature normals, 1.8 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. July is the warmest month, with an average high of 72°F and an average low of 58°F. January is the coldest month, with an average low of 21°F and an average high of 37°F.
- Precipitation. September is the wettest month, averaging 6.5 inches of precipitation, and February is the driest, at 3.9 inches. An average year brings about 64.9 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 9.6 hours of daylight in December to 14.4 hours in June.
Camping, trails, maps and fees
Whether Grandfather Mountain 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 Grandfather Mountain 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 Grandfather Mountain State Park
Where to stay near Grandfather Mountain State Park
Hotels, cabins and vacation rentals near Grandfather Mountain State Park, with live availability and prices.
Top-rated places to stay near Grandfather Mountain State Park
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Frequently Asked Questions
July is the warmest month, with an average high of 72°F and an average low of 58°F. January is the coldest month, with an average low of 21°F and an average high of 37°F. These are NOAA 1991–2020 climate normals from a weather station 1.8 miles from the park.
Average highs sit between 60°F and 80°F in May through September. They stay below 60°F in October through April.
September is the wettest month, averaging 6.5 inches of precipitation, and February is the driest, at 3.9 inches. An average year brings about 64.9 inches in total. The station has no snowfall normal, so no snowfall figure is available.
Days run from about 9.6 hours of daylight in December to 14.4 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Blue Ridge Parkway54 miles away
- Andrew Johnson National Historic Site58 miles away
- Cowpens National Battlefield68 miles away
Nearby state parks
- Mount Mitchell State Park34 miles away
- South Mountains State Park35 miles away
- Stone Mountain State Park46 miles away
- Chimney Rock State Park53 miles away
Distances are measured in a straight line from the park, so the drive is longer.
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location and acreage; the official North Carolina state park listing for the park's name.