Data recorded at the official National Weather Service reporting station at Grandfather Mountain’s Mile High Swinging Bridge indicated average July weather at the Linville, N.C., nature park.
The warmest day recorded in July 2021 was 78° Fahrenheit on July 17 and 29 — five degrees shy of the mountain’s record high of 83°, recorded Aug. 22, 1983, July 26, 2005, and July 9, 2010.
The lowest temperature observed in July 2021 was 45° on July 3. The lowest temperature ever observed on Grandfather Mountain in the month of July was 41° on July 27, 1962.
The average high temperature for July 2021 was 72.3°, with an average low of 57.7°, for a mean of 65°.
On July 30, the station recorded a wind gust of 66 mph, while the highest sustained wind speed clocked in at 57 mph, also on July 30.
As observed at the park’s nature museum, the mountain saw 6.51 inches of precipitation in July. Precipitation is measured at this lower elevation, as high winds make it difficult to record accurate observations at the top.
The mountain’s rainiest July was recorded in 2013, when 23.91 inches of rain were observed. The driest July on record was in 1977, when only 1.74 inches were measured. The park counted 19 total days of precipitation for July 2021, compared to the park’s record high of 26 days in 1982. The rainiest day on record was July 4, 1989, when the station observed 6.25 inches.
The Grandfather Mountain Stewardship Foundation records and reports data in two different ways:
- The park maintains an automated weather station at the top of the Mile High Swinging Bridge. The N.C. State Climate Office assists the foundation in calibrating the machines and ensuring overall accuracy of data.
- Grandfather Mountain has been an active member of the National Oceanic and Atmospheric Administration’s (NOAA) Cooperative Observer Program since 1955 by reporting daily temperature, precipitation and weather events from locations near the Mile High Swinging Bridge and the Nature Museum.
For more information on weather at Grandfather Mountain, visit http://bit.ly/gfmweather.
The nonprofit Grandfather Mountain Stewardship Foundation strives to inspire conservation of the natural world by helping guests explore, understand and value the wonders of Grandfather Mountain. For more information, call 800-468-7325, or click here to book a trip.