Average Weather in Marmet West Virginia, United States

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4. Kanawha County
5. Marmet

In Marmet, the summers are long, warm, and humid; the winters are short and chilly; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 27°F to 85°F and is rarely below 11°F or above 92°F.

The warm season lasts for 3.9 months, from May 23 to September 19, with an average daily high temperature above 76°F. The hottest day of the year is July 21, with an average high of 85°F and low of 67°F.

The cold season lasts for 2.9 months, from December 2 to February 28, with an average daily high temperature below 51°F. The coldest day of the year is January 29, with an average low of 27°F and high of 43°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 Marmet, 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 Marmet begins around June 4 and lasts for 5.3 months, ending around November 13. On August 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 68% of the time, and overcast or mostly cloudy 32% of the time.

The cloudier part of the year begins around November 13 and lasts for 6.7 months, ending around June 4. On January 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 65% of the time, and clear, mostly clear, or partly cloudy 34% 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 Marmet varies throughout the year.

The wetter season lasts 4.9 months, from March 24 to August 21, with a greater than 34% chance of a given day being a wet day. The chance of a wet day peaks at 44% on June 16.

The drier season lasts 7.1 months, from August 21 to March 24. The smallest chance of a wet day is 24% on October 25.

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 44% on June 16.

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. Marmet experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Marmet. The most rain falls during the 31 days centered around May 18, with an average total accumulation of 3.8 inches.

The least rain falls around January 16, with an average total accumulation of 2.0 inches.

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. Marmet experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 3.2 months, from December 12 to March 17, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 25, with an average total liquid-equivalent accumulation of 0.3 inches.

The snowless period of the year lasts for 8.8 months, from March 17 to December 12. The least snow falls around July 20, with an average total liquid-equivalent accumulation of 0.0 inches.

The length of the day in Marmet varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 30 minutes of daylight; the longest day is June 21, with 14 hours, 50 minutes of daylight.

The earliest sunrise is at 6:02 AM on June 13, and the latest sunrise is 1 hour, 54 minutes later at 7:55 AM on November 4. The earliest sunset is at 5:05 PM on December 7, and the latest sunset is 3 hours, 48 minutes later at 8:53 PM on June 28.

Daylight saving time (DST) is observed in Marmet 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.

Marmet experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.7 months, from May 28 to September 20, during which time the comfort level is muggy, oppressive, or miserable at least 17% of the time. The muggiest day of the year is July 28, with muggy conditions 65% 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 in Marmet experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.6 months, from November 12 to April 30, with average wind speeds of more than 2.4 miles per hour. The windiest day of the year is February 25, with an average hourly wind speed of 3.2 miles per hour.

The calmer time of year lasts for 6.4 months, from April 30 to November 12. The calmest day of the year is August 1, with an average hourly wind speed of 1.6 miles per hour.

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

The wind is most often from the south for 1.5 months, from May 9 to June 23 and for 4.1 months, from August 8 to December 11, with a peak percentage of 42% on November 20. The wind is most often from the west for 1.5 months, from June 23 to August 8 and for 4.9 months, from December 11 to May 9, with a peak percentage of 41% on July 13.

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 4.2 months, from April 28 to September 3, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is July 2, with an average of 6.7 kWh.

The darker period of the year lasts for 3.2 months, from November 8 to February 13, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest day of the year is December 25, with an average of 1.9 kWh.

For the purposes of this report, the geographical coordinates of Marmet are 38.245 deg latitude, -81.567 deg longitude, and 1,014 ft elevation.

The topography within 2 miles of Marmet contains very significant variations in elevation, with a maximum elevation change of 942 feet and an average elevation above sea level of 913 feet. Within 10 miles also contains very significant variations in elevation (1,168 feet). Within 50 miles contains very significant variations in elevation (3,166 feet).

The area within 2 miles of Marmet is covered by trees (73%) and artificial surfaces (26%), within 10 miles by trees (90%), and within 50 miles by trees (94%).

This report illustrates the typical weather in Marmet, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Marmet.

For each station, the records are corrected for the elevation difference between that station and Marmet 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 Marmet is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Marmet and a given station.

The stations contributing to this reconstruction are: Yeager Airport (85%, 15 kilometers, north); Raleigh County Memorial Airport (7%, 64 kilometers, southeast); and Kee Field (8%, 72 kilometers, south).

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.