Average Weather in Jesup Georgia, United States

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2. United States
3. Georgia
4. Wayne County
5. Jesup

In Jesup, the summers are long, hot, and oppressive; the winters are short and cold; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 40°F to 93°F and is rarely below 27°F or above 98°F.

The hot season lasts for 3.9 months, from May 20 to September 17, with an average daily high temperature above 86°F. The hottest day of the year is July 21, with an average high of 93°F and low of 71°F.

The cool season lasts for 2.9 months, from November 28 to February 24, with an average daily high temperature below 68°F. The coldest day of the year is January 17, with an average low of 40°F and high of 62°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.

In Jesup, 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 in Jesup begins around September 14 and lasts for 3.2 months, ending around December 19. On October 27, 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 December 19 and lasts for 8.8 months, ending around September 14. On July 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 57% of the time, and clear, mostly clear, or partly cloudy 43% 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 in Jesup varies significantly throughout the year.

The wetter season lasts 3.5 months, from May 31 to September 16, with a greater than 36% chance of a given day being a wet day. The chance of a wet day peaks at 56% on August 4.

The drier season lasts 8.5 months, from September 16 to May 31. The smallest chance of a wet day is 16% on October 31.

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 56% on August 4.

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. Jesup experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Jesup. The most rain falls during the 31 days centered around August 17, with an average total accumulation of 5.0 inches.

The least rain falls around November 10, with an average total accumulation of 2.2 inches.

The length of the day in Jesup varies significantly over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 5 minutes of daylight; the longest day is June 21, with 14 hours, 13 minutes of daylight.

The earliest sunrise is at 6:21 AM on June 11, and the latest sunrise is 1 hour, 24 minutes later at 7:46 AM on November 4. The earliest sunset is at 5:23 PM on December 3, and the latest sunset is 3 hours, 13 minutes later at 8:36 PM on June 29.

Daylight saving time (DST) is observed in Jesup 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.

Jesup experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.8 months, from April 29 to October 24, during which time the comfort level is muggy, oppressive, or miserable at least 28% of the time. The muggiest day of the year is August 9, with muggy conditions 99% of the time.

The least muggy day of the year is January 30, with muggy conditions 4% of the time.

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 in Jesup experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.4 months, from October 8 to May 20, with average wind speeds of more than 2.7 miles per hour. The windiest day of the year is March 9, with an average hourly wind speed of 3.3 miles per hour.

The calmer time of year lasts for 4.6 months, from May 20 to October 8. The calmest day of the year is August 9, with an average hourly wind speed of 2.2 miles per hour.

The predominant average hourly wind direction in Jesup varies throughout the year.

The wind is most often from the west for 1.0 weeks, from August 5 to August 12 and for 7.1 months, from December 23 to July 26, with a peak percentage of 35% on August 5. The wind is most often from the east for 2.4 months, from August 12 to October 24, with a peak percentage of 44% on September 7. The wind is most often from the north for 2.0 months, from October 24 to December 23, with a peak percentage of 34% on November 8.

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 5 to July 8, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest day of the year is May 14, with an average of 6.7 kWh.

The darker period of the year lasts for 2.8 months, from November 12 to February 5, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest day of the year is December 21, with an average of 2.9 kWh.

For the purposes of this report, the geographical coordinates of Jesup are 31.608 deg latitude, -81.886 deg longitude, and 89 ft elevation.

The topography within 2 miles of Jesup is essentially flat, with a maximum elevation change of 66 feet and an average elevation above sea level of 85 feet. Within 10 miles is essentially flat (141 feet). Within 50 miles also contains only modest variations in elevation (279 feet).

The area within 2 miles of Jesup is covered by artificial surfaces (54%), trees (30%), and herbaceous vegetation (16%), within 10 miles by trees (57%) and herbaceous vegetation (25%), and within 50 miles by trees (53%) and herbaceous vegetation (24%).

This report illustrates the typical weather in Jesup, 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

There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Jesup.

For each station, the records are corrected for the elevation difference between that station and Jesup according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Jesup is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Jesup and a given station.

The stations contributing to this reconstruction are: Jesup Wayne County Airport (90%, 6 kilometers, south); Ft. Stewart (4.7%, 43 kilometers, northeast); Bacon County Airport (2.9%, 59 kilometers, west); and Vidalia Regional Airport (1.9%, 80 kilometers, northwest).

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.