December Weather at Lawrence Municipal Airport Kansas, United StatesDaily high temperatures decrease by 8°F, from 48°F to 40°F, rarely falling below 23°F or exceeding 63°F. Daily low temperatures decrease by 8°F, from 29°F to 21°F, rarely falling below 5°F or exceeding 42°F. For reference, on July 19, the hottest day of the year, temperatures at Lawrence Municipal Airport typically range from 69°F to 90°F, while on January 6, the coldest day of the year, they range from 21°F to 40°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Khvoy, Iran (6,521 miles away); Ghazni, Afghanistan (7,323 miles); and Jalal-Abad, Kyrgyzstan (6,871 miles) are the far-away foreign places with temperatures most similar to Lawrence Municipal Airport (view comparison). CloudsThe month of December at Lawrence Municipal Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 47% throughout the month. The highest chance of overcast or mostly cloudy conditions is 49% on December 21. The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 54% of the time. For reference, on February 14, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on August 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Lawrence Municipal Airport, the chance of a wet day over the course of December is gradually decreasing, starting the month at 14% and ending it at 10%. For reference, the year's highest daily chance of a wet day is 45% on June 7, and its lowest chance is 9% on January 12. Over the course of December at Lawrence Municipal Airport, the chance of a day with only rain decreases from 10% to 4%, the chance of a day with mixed snow and rain remains an essentially constant 3% throughout, and the chance of a day with only snow remains an essentially constant 3% throughout. RainfallTo show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during December at Lawrence Municipal Airport is decreasing, starting the month at 1.4 inches, when it rarely exceeds 2.9 inches or falls below 0.1 inches, and ending the month at 0.6 inches, when it rarely exceeds 1.5 inches. SnowfallAs with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day snowfall during December at Lawrence Municipal Airport is gradually increasing, starting the month at 2.2 inches, when it rarely exceeds 6.2 inches or falls below -0.0 inches, and ending the month at 3.1 inches, when it rarely exceeds 7.8 inches or falls below -0.0 inches. The highest average 31-day accumulation is 3.2 inches on December 22. SunOver the course of December at Lawrence Municipal Airport, the length of the day is essentially constant. The shortest day of the month is December 20, with 9 hours, 26 minutes of daylight and the longest day is December 1, with 9 hours, 37 minutes of daylight. The earliest sunrise of the month at Lawrence Municipal Airport is 7:21 AM on December 1 and the latest sunrise is 18 minutes later at 7:39 AM on December 31. The earliest sunset is 4:58 PM on December 6 and the latest sunset is 11 minutes later at 5:08 PM on December 31. Daylight saving time is observed at Lawrence Municipal Airport during 2024, but it neither starts nor ends during December, so the entire month is in daylight saving time. For reference, on June 20, the longest day of the year, the Sun rises at 5:55 AM and sets 14 hours, 55 minutes later, at 8:49 PM, while on December 21, the shortest day of the year, it rises at 7:36 AM and sets 9 hours, 26 minutes later, at 5:02 PM. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for December 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
HumidityWe 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. The chance that a given day will be muggy at Lawrence Municipal Airport is essentially constant during December, remaining around 0% throughout. For reference, on July 21, the muggiest day of the year, there are muggy conditions 71% of the time, while on December 1, the least muggy day of the year, there are muggy conditions 0% of the time. WindThis 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 Lawrence Municipal Airport is essentially constant during December, remaining within 0.2 miles per hour of 10.9 miles per hour throughout. For reference, on March 31, the windiest day of the year, the daily average wind speed is 12.8 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 8.3 miles per hour. The lowest daily average wind speed during December is 10.7 miles per hour on December 16. The wind direction at Lawrence Municipal Airport during December is predominantly out of the south from December 1 to December 15 and the north from December 15 to December 31. Growing SeasonDefinitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The growing season at Lawrence Municipal Airport typically lasts for 6.0 months (184 days), from around April 15 to around October 16, rarely starting before March 29 or after May 2, and rarely ending before September 24 or after November 5. The month of December at Lawrence Municipal Airport is reliably fully outside of the growing season. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F. The average accumulated growing degree days at Lawrence Municipal Airport are essentially constant during December, remaining within 9°F of 4,091°F throughout. Solar EnergyThis 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 at Lawrence Municipal Airport is essentially constant during December, remaining within 0.1 kWh of 2.2 kWh throughout. The lowest average daily incident shortwave solar energy during December is 2.1 kWh on December 19. TopographyFor the purposes of this report, the geographical coordinates of Lawrence Municipal Airport are 39.006 deg latitude, -95.223 deg longitude, and 823 ft elevation. The topography within 2 miles of Lawrence Municipal Airport contains only modest variations in elevation, with a maximum elevation change of 112 feet and an average elevation above sea level of 828 feet. Within 10 miles also contains only modest variations in elevation (364 feet). Within 50 miles contains only modest variations in elevation (873 feet). The area within 2 miles of Lawrence Municipal Airport is covered by cropland (85%) and artificial surfaces (13%), within 10 miles by cropland (64%) and trees (20%), and within 50 miles by cropland (57%) and grassland (18%). Data SourcesThis report illustrates the typical weather at Lawrence Municipal 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 PointLawrence Municipal 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 New Century AirCenter, Philip Billard Municipal Airport, Forbes Field Airport, Johnson County Executive Airport, Kansas City International Airport, Charles B. Wheeler Downtown Airport, Rosecrans Memorial Airport, and Lee's Summit Municipal Airport. Other DataAll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. 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