January Weather at Assiut Airport EgyptDaily high temperatures are around 67°F, rarely falling below 59°F or exceeding 77°F. The lowest daily average high temperature is 66°F on January 9. Daily low temperatures are around 44°F, rarely falling below 38°F or exceeding 50°F. The lowest daily average low temperature is 43°F on January 18. For reference, on July 22, the hottest day of the year, temperatures at Assiut Airport typically range from 75°F to 98°F, while on January 18, the coldest day of the year, they range from 43°F to 66°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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. Cotulla, Texas, United States (7,389 miles away) is the far-away foreign place with temperatures most similar to Assiut Airport (view comparison). CloudsThe month of January at Assiut Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 21% throughout the month. The clearest day of the month is January 19, with clear, mostly clear, or partly cloudy conditions 82% of the time. For reference, on December 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 26%, while on September 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 99%. PrecipitationSunOver the course of January at Assiut Airport, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 26 minutes, implying an average daily increase of 52 seconds, and weekly increase of 6 minutes, 1 second. The shortest day of the month is January 1, with 10 hours, 28 minutes of daylight and the longest day is January 31, with 10 hours, 54 minutes of daylight. The latest sunrise of the month at Assiut Airport is 6:46 AM on January 13 and the earliest sunrise is 4 minutes earlier at 6:42 AM on January 31. The earliest sunset is 5:13 PM on January 1 and the latest sunset is 23 minutes later at 5:36 PM on January 31. Daylight saving time is observed at Assiut Airport during 2024, but it neither starts nor ends during January, so the entire month is in standard time. For reference, on June 20, the longest day of the year, the Sun rises at 6:02 AM and sets 13 hours, 51 minutes later, at 7:53 PM, while on December 21, the shortest day of the year, it rises at 6:41 AM and sets 10 hours, 26 minutes later, at 5:07 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 January 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 Assiut Airport is essentially constant during January, remaining around 0% throughout. For reference, on August 23, the muggiest day of the year, there are muggy conditions 3% of the time, while on January 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 Assiut Airport is essentially constant during January, remaining within 0.2 miles per hour of 7.6 miles per hour throughout. For reference, on June 18, the windiest day of the year, the daily average wind speed is 11.5 miles per hour, while on January 1, the calmest day of the year, the daily average wind speed is 7.4 miles per hour. The lowest daily average wind speed during January is 7.4 miles per hour on January 1. The hourly average wind direction at Assiut Airport throughout January is predominantly from the north, with a peak proportion of 62% on January 9. 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). Temperatures at Assiut Airport are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year. 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 Assiut Airport are increasing during January, increasing by 184°F, from 6°F to 190°F, over the course of the month. 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 Assiut Airport is gradually increasing during January, rising by 0.7 kWh, from 4.1 kWh to 4.8 kWh, over the course of the month. TopographyFor the purposes of this report, the geographical coordinates of Assiut Airport are 27.047 deg latitude, 31.012 deg longitude, and 758 ft elevation. The topography within 2 miles of Assiut Airport contains only modest variations in elevation, with a maximum elevation change of 167 feet and an average elevation above sea level of 761 feet. Within 10 miles contains only modest variations in elevation (843 feet). Within 50 miles also contains very significant variations in elevation (1,486 feet). The area within 2 miles of Assiut Airport is covered by bare soil (97%), within 10 miles by bare soil (98%), and within 50 miles by bare soil (85%) and cropland (12%). Data SourcesThis report illustrates the typical weather at Assiut 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 PointAssiut 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. In this case, the only station close and reliable enough to use as a fallback is Minya. 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. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Please review our full terms contained on our Terms of Service page. |