Average Weather at Richmond County Airport North Carolina, United States

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2. United States
3. North Carolina
4. Richmond County
5. Richmond County Airport

At Richmond County Airport, the summers are hot and muggy, the winters are cold, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 35°F to 91°F and is rarely below 22°F or above 97°F.

The hot season lasts for 3.7 months, from May 23 to September 15, with an average daily high temperature above 83°F. The hottest day of the year is July 19, with an average high of 91°F and low of 72°F.

The cool season lasts for 3.0 months, from November 29 to February 27, with an average daily high temperature below 61°F. The coldest day of the year is January 29, with an average low of 35°F and high of 54°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.

At Richmond County 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 Richmond County Airport begins around August 7 and lasts for 3.6 months, ending around November 26. On October 15, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 65% of the time, and overcast or mostly cloudy 35% of the time.

The cloudier part of the year begins around November 26 and lasts for 8.4 months, ending around August 7. On February 13, 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.

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

The wetter season lasts 3.3 months, from May 25 to September 3, with a greater than 33% chance of a given day being a wet day. The chance of a wet day peaks at 48% on August 5.

The drier season lasts 8.7 months, from September 3 to May 25. The smallest chance of a wet day is 18% 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 48% on August 5.

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. Richmond County Airport experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year at Richmond County Airport. The most rain falls during the 31 days centered around July 27, with an average total accumulation of 4.0 inches.

The least rain falls around November 8, with an average total accumulation of 2.6 inches.

Snowfall

The sliding 31-day liquid-equivalent quantity of snowfall at Richmond County Airport does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.

The length of the day at Richmond County Airport varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 49 minutes of daylight; the longest day is June 21, with 14 hours, 30 minutes of daylight.

The earliest sunrise is at 6:04 AM on June 12, and the latest sunrise is 1 hour, 38 minutes later at 7:42 AM on November 4. The earliest sunset is at 5:07 PM on December 5, and the latest sunset is 3 hours, 29 minutes later at 8:36 PM on June 28.

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

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.

Richmond County Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.6 months, from May 17 to October 5, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The muggiest day of the year is July 24, with muggy conditions 88% of the time.

The least muggy day of the year is February 5, when muggy conditions are essentially unheard of.

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 Richmond County Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.5 months, from November 5 to May 19, with average wind speeds of more than 3.3 miles per hour. The windiest day of the year is March 8, with an average hourly wind speed of 4.0 miles per hour.

The calmer time of year lasts for 5.5 months, from May 19 to November 5. The calmest day of the year is August 9, with an average hourly wind speed of 2.7 miles per hour.

The predominant average hourly wind direction at Richmond County Airport varies throughout the year.

The wind is most often from the south for 5.2 months, from March 17 to August 22, with a peak percentage of 38% on July 14. The wind is most often from the east for 4.0 weeks, from August 22 to September 19, with a peak percentage of 35% on September 6. The wind is most often from the north for 5.9 months, from September 19 to March 17, with a peak percentage of 32% on January 1.

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 4.4 months, from April 10 to August 21, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest day of the year is June 6, with an average of 6.7 kWh.

The darker period of the year lasts for 2.9 months, from November 10 to February 7, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest day of the year is December 25, with an average of 2.5 kWh.

For the purposes of this report, the geographical coordinates of Richmond County Airport are 34.894 deg latitude, -79.758 deg longitude, and 285 ft elevation.

The topography within 2 miles of Richmond County Airport contains only modest variations in elevation, with a maximum elevation change of 161 feet and an average elevation above sea level of 301 feet. Within 10 miles also contains only modest variations in elevation (479 feet). Within 50 miles contains only modest variations in elevation (991 feet).

The area within 2 miles of Richmond County Airport is covered by trees (43%), artificial surfaces (25%), and cropland (24%), within 10 miles by trees (81%), and within 50 miles by trees (53%) and cropland (36%).

This report illustrates the typical weather at Richmond County 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

Richmond County 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 Cheraw Municipal Airport/Lynch Bellinger Field; Marlboro County Jetport - HE Avent Field; Mackall Army Airfield; Anson County Airport; Laurinburg-Maxton Airport; Darlington, Darlington County Jetport Airport; Moore County Airport; and Hartsville Regional 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.