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The least humid month is June (27.1% relative humidity), and the most humid month is December (51.4%). Winter Weather Advisory. Winter Festivals and Free Concerts. It's complicated... Daily coronavirus briefing: Biden's economic recovery plan c... New FEMA tool shows risk of weather disasters in different p... Pandemic woes for artists that rely on outdoor festivals. Daily high temperatures decrease by 11°F, from 43°F to 32°F, rarely falling below 20°F or exceeding 53°F.. Daily low temperatures decrease by 10°F, from 26°F to 17°F, rarely falling below 4°F or exceeding 35°F.. For reference, on July 15, the hottest day of the year, temperatures in Keystone typically range … Average Weather in December in Keystone Colorado, United States. Get the 14 day trend, long range weather forecast for Keystone, CO, US Wind in Keystone is usually calm. 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! The chance that a given day will be muggy in Keystone is essentially constant during December, remaining around 0% throughout. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. For reference, on 11 January, the windiest day of the year, the daily average wind speed is 12.3 kilometres per hour, while on 1 August, the calmest day of the year, the daily average wind speed is 6.2 kilometres per hour. Forecasting the snowfall amount probability, snow accumulation, and a snowfall forecast map. 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 . Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Keystone, CO, US with The Weather Network. We have reviews of the best places to see in Keystone. Plan you week with the help of our 10-day weather forecasts and weekend weather predictions for Keystone Resort, Colorado The percentage of time spent at various humidity comfort levels, categorized by dew point. Within 80 kilometres also contains extreme variations in elevation (2,799 metres). 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. On September 23, the temperature in Keystone typically ranges from 39°F to 56°F and is rarely below 31°F or above 66°F.. For reference, on July 14, the hottest day of the year, temperatures in Keystone typically range from 49°F to 70°F, while on January 28, the coldest day of the year, they range from 11°F … Located in Silverthorne, the ice castles are open to visit for a small charge and usually open in late December or January and stay open as long as the weather permits. High. Find what to do today, this weekend, or in January. The average hourly temperature, color coded into bands. What's the weather forecast for Keystone this week? Celebrate the New Year with a winter escape to Keystone. 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. The area within 3 kilometres of Keystone is covered by trees (68%) and shrubs (29%), within 16 kilometres by trees (63%) and snow and glaciers (17%), and within 80 kilometres by trees (56%) and shrubs (20%). The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). Breckenridge plans to follow Nov. 13, with Vail close behind Nov. 20., while Beaver Creek and Crested Butte are both set to open Nov. 25. 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. Try searching for a city, zip code or point of interest. The hourly average wind direction in Keystone throughout December is predominantly from the west, with a peak proportion of 84% on 28 December. Over the course of December in Keystone, the chance of a day with only rain remains an essentially constant 0% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 12% throughout. Free Long Range Weather Forecast for Keystone, Colorado. Check out the Keystone, CO WinterCast. 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. 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. 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. 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. 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. The clearest day of the month is 1 December, with clear, mostly clear, or partly cloudy conditions 59% of the time. Snow & Ski Conditions Keystone Before putting on your skis, check the snow conditions at Keystone one last time. Shortwave radiation includes visible light and ultraviolet radiation. Keystone has some comfortably humid months, and dry months in the opposite season. Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. 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. for Keystone, Colorado Keystone, Colorado gets 19.8 inches of rain, on average, per year. 1 in 1 cm. Keystone, CO - Weather forecast from Theweather.com. The windiest month is April, followed by February and January. Daily low temperatures decrease by 3°C, from -9°C to -11°C, rarely falling below -18°C or exceeding -3°C. The percentage of time spent in various temperature bands. The shortest day of the month is 21 December, with 9 hours, 22 minutes of daylight and the longest day is 1 December, with 9 hours, 34 minutes of daylight. Leadville, Colorado gets 14.4 inches of rain, on average, per year. March is the snowiest month in Keystone with 24.3 inches of snow, and 10 months of the year have significant snowfall. 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. Keystone Weather Forecast. The amount of rain in December is high … The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. 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 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. Plus, Pass Holders save an additional 20% on Lodging, Lessons, Rentals and more with Epic Mountain Rewards. There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Keystone. 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%. Mostly Cloudy then Slight Chance Snow. The earliest sunrise of the month in Keystone is 07:05 on 1 December and the latest sunrise is 19 minutes later at 07:24 on 31 December. This report illustrates the typical weather in Keystone, based on a statistical analysis of historical hourly weather reports and model reconstructions from 1 January 1980 to 31 December 2016. 0 in 1 cm. Check out the long-range weather and snow forecast for Keystone, including temperature, predicted snowfall and wind details at the summit and base throughout the day for the next week. Tonight. In addition to snow history, you can also view the mountain's Base Depth by selecting it from the dropdown. Precip. 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. Definitions 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 (≥ 0°C) in the year (the calendar year in the Northern Hemisphere, or from 1 July until 30 June in the Southern Hemisphere). 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. Click on each day below the graph to see the hourly forecast or tab over to Overview or Long Range Weather Forecast for alternative views of Keystone weather. We assume no responsibility for any decisions made on the basis of the content presented on this site. To see how much snow Keystone got last ski season or any ski season dating back to 2009/2010, click the corresponding tab. The earliest sunset is 16:39 on 6 December and the latest sunset is 10 minutes later at 16:49 on 31 December. Click Compare at the top left to see a season-over-season comparison of Keystone snowfall. Lower dew points feel drier and higher dew points feel more humid. 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. 11°F-11°C. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Lift Tickets. Tab over to overview or Hour by Hour for alternative views of the Keystone weather forecast. 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). ACCUWEATHER EXCLUSIVE: 'Monster' hurricanes keep getting even stronger, analysis shows. 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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