February Weather in Altan MongoliaDaily high temperatures increase by 9°F, from 10°F to 19°F, rarely falling below -1°F or exceeding 30°F. Daily low temperatures increase by 7°F, from -11°F to -5°F, rarely falling below -24°F or exceeding 7°F. For reference, on July 13, the hottest day of the year, temperatures in Altan typically range from 49°F to 72°F, while on January 19, the coldest day of the year, they range from -12°F to 8°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on February. 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. Watson Lake, Yukon, Canada (4,563 miles away); High Level, Alberta, Canada (4,842 miles); and Flin Flon, Manitoba, Canada (5,261 miles) are the far-away foreign places with temperatures most similar to Altan (view comparison). CloudsThe month of February in Altan experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 41% throughout the month. The clearest day of the month is February 2, with clear, mostly clear, or partly cloudy conditions 61% of the time. For reference, on April 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on September 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%. PrecipitationSunOver the course of February in Altan, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 31 minutes, implying an average daily increase of 3 minutes, 15 seconds, and weekly increase of 22 minutes, 43 seconds. The shortest day of the month is February 1, with 9 hours, 29 minutes of daylight and the longest day is February 29, with 11 hours, 0 minutes of daylight. The latest sunrise of the month in Altan is 8:06 AM on February 1 and the earliest sunrise is 46 minutes earlier at 7:19 AM on February 29. The earliest sunset is 5:35 PM on February 1 and the latest sunset is 45 minutes later at 6:20 PM on February 29. Daylight saving time is not observed in Altan during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 4:36 AM and sets 16 hours, 4 minutes later, at 8:40 PM, while on December 21, the shortest day of the year, it rises at 8:24 AM and sets 8 hours, 21 minutes later, at 4:45 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 February 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 in Altan is essentially constant during February, remaining around 0% throughout. 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 in Altan is gradually increasing during February, increasing from 7.7 miles per hour to 8.5 miles per hour over the course of the month. For reference, on April 29, the windiest day of the year, the daily average wind speed is 10.4 miles per hour, while on January 28, the calmest day of the year, the daily average wind speed is 7.7 miles per hour. The hourly average wind direction in Altan throughout February is predominantly from the south, with a peak proportion of 39% on February 6. 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 in Altan typically lasts for 2.8 months (86 days), from around June 5 to around August 30, rarely starting before May 19 or after June 28, and rarely ending before August 9 or after September 18. The month of February in Altan 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 in Altan are essentially constant during February, remaining around 0°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 in Altan is increasing during February, rising by 1.3 kWh, from 2.4 kWh to 3.7 kWh, over the course of the month. TopographyFor the purposes of this report, the geographical coordinates of Altan are 48.117 deg latitude, 95.717 deg longitude, and 6,276 ft elevation. The topography within 2 miles of Altan contains very significant variations in elevation, with a maximum elevation change of 1,089 feet and an average elevation above sea level of 6,312 feet. Within 10 miles contains very significant variations in elevation (2,746 feet). Within 50 miles contains large variations in elevation (5,217 feet). The area within 2 miles of Altan is covered by bare soil (100%), within 10 miles by bare soil (99%), and within 50 miles by bare soil (78%) and sparse vegetation (19%). Data SourcesThis report illustrates the typical weather in Altan, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Altan is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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. The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Altan, according to the International Standard Atmosphere . All 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. 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. |