Average Weather at Rockingham County NC Shiloh Airport North Carolina, United States

At Rockingham County NC Shiloh Airport, the summers are hot and muggy, the winters are chilly and wet, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 29°F to 88°F and is rarely below 16°F or above 95°F.

The hot season lasts for 3.6 months, from May 27 to September 14, with an average daily high temperature above 80°F. The hottest day of the year is July 21, with an average high of 88°F and low of 68°F.

The cold season lasts for 3.1 months, from November 29 to March 1, with an average daily high temperature below 57°F. The coldest day of the year is January 29, with an average low of 29°F and high of 49°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

At Rockingham County NC Shiloh Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year at Rockingham County NC Shiloh Airport begins around July 27 and lasts for 3.7 months, ending around November 19. On October 9, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 34% of the time.

The cloudier part of the year begins around November 19 and lasts for 8.3 months, ending around July 27. On December 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% of the time.

Cloud Cover

The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Rockingham County NC Shiloh Airport varies throughout the year.

The wetter season lasts 4.0 months, from April 29 to August 29, with a greater than 31% chance of a given day being a wet day. The chance of a wet day peaks at 43% on July 15.

The drier season lasts 8.0 months, from August 29 to April 29. The smallest chance of a wet day is 19% on October 30.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 43% on July 15.

Daily Chance of Precipitation

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Rockingham County NC Shiloh Airport experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year at Rockingham County NC Shiloh Airport. The most rain falls during the 31 days centered around June 5, with an average total accumulation of 3.5 inches.

The least rain falls around January 31, with an average total accumulation of 2.4 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Rockingham County NC Shiloh Airport experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 4.0 months, from November 23 to March 22, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around February 11, with an average total liquid-equivalent accumulation of 0.5 inches.

The snowless period of the year lasts for 8.0 months, from March 22 to November 23. The least snow falls around July 23, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day at Rockingham County NC Shiloh Airport varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 40 minutes of daylight; the longest day is June 21, with 14 hours, 39 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 6:00 AM on June 12, and the latest sunrise is 1 hour, 45 minutes later at 7:45 AM on November 4. The earliest sunset is at 5:03 PM on December 6, and the latest sunset is 3 hours, 38 minutes later at 8:41 PM on June 28.

Daylight saving time (DST) is observed at Rockingham County NC Shiloh Airport during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Rockingham County NC Shiloh Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.3 months, from May 19 to September 28, during which time the comfort level is muggy, oppressive, or miserable at least 20% of the time. The muggiest day of the year is July 24, with muggy conditions 80% of the time.

The least muggy day of the year is February 3, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Rockingham County NC Shiloh Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.3 months, from November 4 to May 14, with average wind speeds of more than 3.1 miles per hour. The windiest day of the year is March 8, with an average hourly wind speed of 3.9 miles per hour.

The calmer time of year lasts for 5.7 months, from May 14 to November 4. The calmest day of the year is August 8, with an average hourly wind speed of 2.3 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction at Rockingham County NC Shiloh Airport varies throughout the year.

The wind is most often from the north for 2.0 weeks, from February 10 to February 24; for 2.7 weeks, from March 3 to March 22; and for 3.0 months, from August 20 to November 21, with a peak percentage of 35% on October 23. The wind is most often from the west for 1.0 weeks, from February 24 to March 3; for 4.9 months, from March 22 to August 20; and for 2.6 months, from November 21 to February 10, with a peak percentage of 41% on July 13.

Wind Direction

The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.0 months, from April 21 to August 21, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is June 23, with an average of 7.0 kWh.

The darker period of the year lasts for 3.0 months, from November 7 to February 7, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest day of the year is December 25, with an average of 2.3 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Rockingham County NC Shiloh Airport are 36.437 deg latitude, -79.851 deg longitude, and 633 ft elevation.

The topography within 2 miles of Rockingham County NC Shiloh Airport contains only modest variations in elevation, with a maximum elevation change of 371 feet and an average elevation above sea level of 647 feet. Within 10 miles contains only modest variations in elevation (725 feet). Within 50 miles contains significant variations in elevation (3,612 feet).

The area within 2 miles of Rockingham County NC Shiloh Airport is covered by trees (77%) and cropland (23%), within 10 miles by trees (84%) and cropland (12%), and within 50 miles by trees (69%) and cropland (24%).

Data Sources

This report illustrates the typical weather at Rockingham County NC Shiloh Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Rockingham County NC Shiloh Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Blue Ridge Airport; Piedmont Triad International Airport; Smith Reynolds Airport; Danville Regional Airport; Burlington-Alamance Regional Airport; Mount Airy/Surry County Airport; Asheboro, Asheboro Municipal Airport; and Lexington Municipal Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.