Try searching for a city, zip code or point of interest. Keystone averages 159.9 inches of snow per year. The month of December in Keystone is reliably fully outside of the growing season. 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. 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. 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%. 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! 0 in 1 cm. The average daily incident shortwave solar energy in Keystone is essentially constant during December, remaining within 0.1 kWh of 2.6 kWh throughout. 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. Indoor exercise equipment for your fitness-focused resolutio... Easy ways to stay active during the winter. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. 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. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. 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. 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. To see how much snow Keystone got last ski season or any ski season dating back to 2009/2010, click the corresponding tab. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. ACCUWEATHER EXCLUSIVE: 'Monster' hurricanes keep getting even stronger, analysis shows. Get the 14 day trend, long range weather forecast for Keystone, CO, US We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Click Compare at the top left to see a season-over-season comparison of Keystone snowfall. We report snowfall in liquid-equivalent terms. Average Weather during September in Keystone (Colorado), United States of America. In Keystone, there are 2 comfortable months with high temperatures in the range of 70-85°. Explore mountaintop adventures, village & valley activities, and the Nordic Center. Average Weather on September 23 in Keystone Colorado, United States. Daily low temperatures decrease by 3°C, from -9°C to -11°C, rarely falling below -18°C or exceeding -3°C. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Keystone, CO, US with The Weather Network. The black line is the percentage chance that a given day is within the growing season. for Keystone, Colorado 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. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The chance that a given day will be muggy in Keystone is essentially constant during December, remaining around 0% throughout. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. Mostly Cloudy then Slight Chance Snow. Low. The number of hours during which the Sun is visible (black line). Lower dew points feel drier and higher dew points feel more humid. 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 information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. 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. Low: 12 °F. 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 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. 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 … 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. 5°F-15°C. Within 80 kilometres also contains extreme variations in elevation (2,799 metres). Height and quality of the snow, date of the last snowfall, today's weather, temperature, wind, visibility, state of the ski area ... all the information you are looking for to have a great day of skiing. Feb. 24°F-4°C. Visit top-rated & … As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day. 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). Buy early to lock in the days you want. Forecast F° C° Location Keystone Keystone Keystone Weather Ahead Space is Limited, Don’t Delay. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. The US average is 38.1 inches of rain per year. To 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 amount of rain in December is high … The average accumulated growing degree days in Keystone are essentially constant during December, remaining around 464°C throughout. Wind in Keystone is usually calm. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Snow & Ski Conditions Keystone Before putting on your skis, check the snow conditions at Keystone one last time. 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. Average Weather in February in Keystone Colorado, United States. 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. 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. 5°F-15°C. Check out the Keystone, CO WinterCast. 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. Keystone has some comfortably humid months, and dry months in the opposite 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 thin dotted lines are the corresponding average perceived temperatures. 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 . 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. 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. The figure below presents a compact representation of key lunar data for December 2021. The thin dotted line is the corresponding average liquid-equivalent snowfall. 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. 11°F-11°C. 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). Forecasting the snowfall amount probability, snow accumulation, and a snowfall forecast map. Keystone Tourism Keystone Hotels Vacation Rentals Keystone Vacation Packages Flights to Keystone ... Keystone weather essentials | Monthly Averages . ENJOY LODGING BOOKING FLEXIBILITY. The percentage of time spent in various temperature bands. The average hourly temperature, color coded into bands. Free Long Range Weather Forecast for Keystone, Colorado. The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands. Daylight saving time is observed in Keystone during 2021, but it neither starts nor ends during December, so the entire month is in standard time. When will the polar vortex send Arctic air? Winter Weather Advisory. Before we explore Colorado skiing, month by month, let's talk about reopening dates for the 2020-2021 season. Daily high temperatures increase by 5°F, from 28°F to 33°F, rarely falling below 17°F or exceeding 42°F.. Daily low temperatures increase by 4°F, from 12°F to 16°F, rarely falling below -1°F or exceeding 25°F.. For reference, on July 15, the hottest day of the year, temperatures in Keystone typically range … Leadville averages 141.3 inches of snow per year. The clearest day of the month is 1 December, with clear, mostly clear, or partly cloudy conditions 59% of the time. In this report, we use a base of 10°C and a cap of 30°C. 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. Tonight. 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. Published December 23, 2020 10:30 am Share on Facebook Share on Twitter Share on Linkedin Keystone and Breck ask Summit County to ease coronavirus restrictions The lowest average daily incident shortwave solar energy during December is 2.5 kWh on 22 December. What's the weather forecast for Keystone this week? A wet day is one with at least 1 millimetre of liquid or liquid-equivalent precipitation. Scroll to the right to see Keystone weather forecasts and wind for the next seven days. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. Time zones for airports and weather stations are provided by AskGeo.com . Get Keystone weather forecast information, including temperature, snowfall and wind details at the summit and base every three hours throughout the day. 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). What’s the weather in Keystone today? The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. 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. The amount of rain/snow in September is normal with an average of 45mm (1.8in). 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. We assume no responsibility for any decisions made on the basis of the content presented on this site. Keystone, Colorado gets 19.8 inches of rain, on average, per year. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. 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