Average Weather at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field North Carolina, United States

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At Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field, the summers are long, warm, and oppressive; the winters are cold and windy; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 37°F to 87°F and is rarely below 24°F or above 92°F.

The hot season lasts for 3.9 months, from May 28 to September 26, with an average daily high temperature above 80°F. The hottest day of the year is July 20, with an average high of 87°F and low of 75°F.

The cool season lasts for 3.2 months, from December 4 to March 10, with an average daily high temperature below 61°F. The coldest day of the year is January 29, with an average low of 37°F and high of 55°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 Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field begins around September 13 and lasts for 2.9 months, ending around December 10. On October 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.

The cloudier part of the year begins around December 10 and lasts for 9.1 months, ending around September 13. On July 26, the cloudiest day of the year, the sky is overcast or mostly cloudy 56% of the time, and clear, mostly clear, or partly cloudy 44% 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 Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field varies significantly throughout the year.

The wetter season lasts 3.4 months, from June 6 to September 18, with a greater than 36% chance of a given day being a wet day. The chance of a wet day peaks at 52% on July 25.

The drier season lasts 8.6 months, from September 18 to June 6. The smallest chance of a wet day is 20% 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 52% on July 25.

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. Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field. The most rain falls during the 31 days centered around September 4, with an average total accumulation of 6.3 inches.

The least rain falls around April 22, with an average total accumulation of 3.1 inches.

The length of the day at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 50 minutes of daylight; the longest day is June 21, with 14 hours, 29 minutes of daylight.

The earliest sunrise is at 5:54 AM on June 12, and the latest sunrise is 1 hour, 37 minutes later at 7:31 AM on November 4. The earliest sunset is at 4:56 PM on December 5, and the latest sunset is 3 hours, 28 minutes later at 8:25 PM on June 29.

Daylight saving time (DST) is observed at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field 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.

Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.3 months, from May 7 to October 16, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The muggiest day of the year is July 23, with muggy conditions 95% of the time.

The least muggy day of the year is February 10, 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 Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.4 months, from October 28 to May 9, with average wind speeds of more than 5.8 miles per hour. The windiest day of the year is February 27, with an average hourly wind speed of 6.9 miles per hour.

The calmer time of year lasts for 5.6 months, from May 9 to October 28. The calmest day of the year is August 14, with an average hourly wind speed of 4.8 miles per hour.

The predominant average hourly wind direction at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field varies throughout the year.

The wind is most often from the south for 5.1 months, from March 26 to August 28, with a peak percentage of 46% on July 10. The wind is most often from the east for 2.4 weeks, from August 28 to September 14, with a peak percentage of 32% on September 7. The wind is most often from the north for 6.4 months, from September 14 to March 26, with a peak percentage of 41% on January 1.

Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from June 18 to September 26, with an average temperature above 78°F. The day of the year with the warmest water is August 6, with an average temperature of 82°F.

The time of year with cooler water lasts for 4.2 months, from December 16 to April 22, with an average temperature below 66°F. The day of the year with the coolest water is February 26, with an average temperature of 62°F.

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 3.1 months, from April 9 to July 13, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is May 17, with an average of 6.6 kWh.

The darker period of the year lasts for 2.9 months, from November 11 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 Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field are 34.693 deg latitude, -77.029 deg longitude, and 7 ft elevation.

The topography within 2 miles of Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field is essentially flat, with a maximum elevation change of 39 feet and an average elevation above sea level of 10 feet. Within 10 miles is also essentially flat (62 feet). Within 50 miles is essentially flat (164 feet).

The area within 2 miles of Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field is covered by water (37%), artificial surfaces (35%), trees (12%), and herbaceous vegetation (11%), within 10 miles by water (50%) and trees (20%), and within 50 miles by water (51%) and trees (25%).

This report illustrates the typical weather at Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field, 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

Swansboro, Bogue Field, Marine Corps Auxiliary Landing Field 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 Cherry Point, Marine Corps Air Station; Beaufort, Michael J Smith Field Airport; Coastal Carolina Regional Airport; Jacksonville, New River, Marine Corps Air Station; Albert J Ellis Airport; Kinston Regional Jetport; Warren Field Airport; and Wilmington International 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.