Celebrate the New Year with a winter escape to Keystone. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. For reference, on 4 March, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 48%, while on 18 September, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%. Indoor exercise equipment for your fitness-focused resolutio... Easy ways to stay active during the winter. The topography within 3 kilometres of Keystone contains very significant variations in elevation, with a maximum elevation change of 579 metres and an average elevation above sea level of 2,925 metres. Visit top-rated & … Low: 12 °F. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Mostly Cloudy then Slight Chance Snow. Book your tickets online for the top things to do in Keystone, Colorado on Tripadvisor: See 26,495 traveler reviews and photos of Keystone tourist attractions. Here are some average weather facts we collected from our historical climate data: During the month of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F). The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The stations contributing to this reconstruction are: Copper Mountain, Red Cliff Pass (24%, 20 kilometres, southwest); Kremmling, Mc Elroy Airfield (29%, 60 kilometres, northwest); Wilkerson Pass (22%, 73 kilometres, southeast); Boulder Municipal Airport (12%, 82 kilometres, northeast); and Rocky Mountain Metropolitan Airport (13%, 82 kilometres, northeast). What’s the weather in Keystone today? Enter any city, zip or place. Book by 1/21 and save on lodging with rates from $129/night. for Keystone, Colorado Explore mountaintop adventures, village & valley activities, and the Nordic Center. Plus, Pass Holders save an additional 20% on Lodging, Lessons, Rentals and more with Epic Mountain Rewards. 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. 0 in 1 cm. Jan. 24°F-4°C. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . Get the 14 day trend, long range weather forecast for Keystone, CO, US The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. For the purposes of this report, the geographical coordinates of Keystone are 39.599 deg latitude, -105.987 deg longitude, and 2,795 m elevation. Tonight. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. The best time of year to visit Keystone in United States of America. Time zones for airports and weather stations are provided by AskGeo.com . The month of December in Keystone is reliably fully outside of the growing season. Average Weather in November in Keystone Colorado, United States. Plan you week with the help of our 10-day weather forecasts and weekend weather predictions for Keystone Resort, Colorado The month of December in Keystone experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 42% throughout the month. Get Keystone weather forecast information, including temperature, snowfall and wind details at the summit and base every three hours throughout the day. If your plans change, your lift ticket is refundable . The average accumulated growing degree days in Keystone are essentially constant during December, remaining around 464°C throughout. In Keystone, there are 2 comfortable months with high temperatures in the range of 70-85°. For reference, on 15 July, the hottest day of the year, temperatures in Keystone typically range from 9°C to 21°C, while on 28 January, the coldest day of the year, they range from -11°C to -3°C. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Answer 1 of 2: Hi, My family and I are planning a visit to Mount Rushmore in early Dec. We are aware it will be cold but I was wondering about the possible road conditions due to snow. Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. See an overview of the current Keystone weather, including high and low temperatures for the day and wind mph at the base and summit of the mountain. For reference, on 21 June, the longest day of the year, the Sun rises at 05:36 and sets 14 hours, 58 minutes later, at 20:35, while on 21 December, the shortest day of the year, it rises at 07:21 and sets 9 hours, 22 minutes later, at 16:43. Tab over to overview or Hour by Hour for alternative views of the Keystone weather forecast. The amount of rain/snow in September is normal with an average of 45mm (1.8in). As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day. Keystone, Colorado gets 19.8 inches of rain, on average, per year. The number of hours during which the Sun is visible (black line). Free Long Range Weather Forecast for Keystone, Colorado. Get the forecast for today, tonight & tomorrow's weather for Keystone, CO. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Find what to do today, this weekend, or in January. 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. 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 . Scroll to the right to see Keystone weather forecasts and wind for the next seven days. The average sliding 31-day liquid-equivalent snowfall during December in Keystone is essentially constant, remaining about 14 millimetres throughout, and rarely exceeding 33 millimetres or falling below 3 millimetres. The chance that a given day will be muggy in Keystone is essentially constant during December, remaining around 0% throughout. Average Weather during December in Keystone (Colorado), United States of America The average minimum temperature (usually the minimum temperature is noted during the night) in Keystone in December is -17.0°C (1.4°F). Keystone Weather Forecast. 12. Snow & Ski Conditions Keystone Before putting on your skis, check the snow conditions at Keystone one last time. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Keystone, CO, US with The Weather Network. Lower dew points feel drier and higher dew points feel more humid. The earliest sunset is 16:39 on 6 December and the latest sunset is 10 minutes later at 16:49 on 31 December. The windiest month is April, followed by February and January. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. A wet day is one with at least 1 millimetre of liquid or liquid-equivalent precipitation. Colorado Ski Resort Reopening Dates. We report snowfall in liquid-equivalent terms. Calendar overview of Months Weather Forecast. 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. Keystone hosts numerous festivals and free concerts throughout the winter. The lowest average daily incident shortwave solar energy during December is 2.5 kWh on 22 December. For each station, the records are corrected for the elevation difference between that station and Keystone according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. The clearest day of the month is 1 December, with clear, mostly clear, or partly cloudy conditions 59% of the time. Weather Highlights Average Weather in December in Keystone Colorado, United States. The black line is the percentage chance that a given day is within the growing season. 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. ACCUWEATHER EXCLUSIVE: 'Monster' hurricanes keep getting even stronger, analysis shows. The amount of rain in December is high … Try searching for a city, zip code or point of interest. We assume no responsibility for any decisions made on the basis of the content presented on this site. 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. Weather data is prone to errors, outages, and other defects. The US average is 27.8 inches of snow per year. Keystone, CO - Weather forecast from Theweather.com. July is the hottest month for Keystone with an average high temperature of 74.9°, which ranks it as one of the coolest places in Colorado. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Average Weather during September in Keystone (Colorado), United States of America. Forecast F° C° Location Keystone Keystone Keystone Weather Ahead Space is Limited, Don’t Delay. Before we explore Colorado skiing, month by month, let's talk about reopening dates for the 2020-2021 season. This report illustrates the typical weather in Keystone, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. The average hourly temperature, color coded into bands. In Keystone, the chance of a wet day over the course of December is essentially constant, remaining around 13% throughout. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. 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. Snow. MERRA-2 Modern-Era Retrospective Analysis. The estimated value at Keystone is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Keystone and a given station. Average Weather on September 23 in Keystone Colorado, United States. Leadville averages 141.3 inches of snow per year. Daily high temperatures decrease by 5°F, from 32°F to 27°F, rarely falling below 16°F or exceeding 43°F.. Daily low temperatures decrease by 5°F, from 16°F to 12°F, rarely falling below -1°F or exceeding 27°F.. For reference, on July 15, the hottest day of the year, temperatures in Keystone typically range … The annual BestPlaces Comfort Index for Keystone is 5.5 (10=best), which means it is one of the least comfortable places in Colorado. The solar day over the course of December. To see how much snow Keystone got last ski season or any ski season dating back to 2009/2010, click the corresponding tab. Wind in Keystone is usually calm. 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Co winter weather Advisory December 28, 08:00am until December 29, 12:00pm levels, by! The Food and Agriculture Organization of the sky covered by clouds the percentage of the covered.