October Weather in Estes Park Colorado, United States
Daily high temperatures decrease by 13°F, from 61°F to 48°F, rarely falling below 34°F or exceeding 72°F.
Daily low temperatures decrease by 9°F, from 36°F to 27°F, rarely falling below 16°F or exceeding 43°F.
For reference, on July 13, the hottest day of the year, temperatures in Estes Park typically range from 49°F to 77°F, while on December 30, the coldest day of the year, they range from 12°F to 30°F.
Average High and Low Temperature in October in Estes Park
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 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 Hourly Temperature in October in Estes Park
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
Gračanica, Bosnia & Herzegovina (5,662 miles away); Chepelare, Bulgaria (5,970 miles); and Başkale, Turkey (6,694 miles) are the far-away foreign places with temperatures most similar to Estes Park (view comparison).
The month of October in Estes Park experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 29% to 38%.
The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 71% of the time.
For reference, on May 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on July 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.
Cloud Cover Categories in October in Estes Park
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Estes Park, the chance of a wet day over the course of October is essentially constant, remaining around 16% throughout.
For reference, the year's highest daily chance of a wet day is 29% on May 23, and its lowest chance is 9% on January 28.
Over the course of October in Estes Park, the chance of a day with only rain decreases from 14% to 6%, the chance of a day with mixed snow and rain remains an essentially constant 3% throughout, and the chance of a day with only snow increases from 1% to 5%.
Probability of Precipitation in October in Estes Park
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 average sliding 31-day rainfall during October in Estes Park is gradually decreasing, starting the month at 0.9 inches, when it rarely exceeds 1.6 inches or falls below 0.2 inches, and ending the month at 0.4 inches, when it rarely exceeds 0.9 inches or falls below 0.1 inches.
Average Monthly Rainfall in October in Estes Park
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during October in Estes Park is gradually increasing, starting the month at 0.1 inches, when it rarely exceeds 0.5 inches or falls below -0.0 inches, and ending the month at 0.4 inches, when it rarely exceeds 1.0 inches.
Average Monthly Liquid-Equivalent Snowfall in October in Estes Park
Over the course of October in Estes Park, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 16 minutes, implying an average daily decrease of 2 minutes, 32 seconds, and weekly decrease of 17 minutes, 46 seconds.
The shortest day of the month is October 31, with 10 hours, 29 minutes of daylight and the longest day is October 1, with 11 hours, 45 minutes of daylight.
Hours of Daylight and Twilight in October in Estes Park
The earliest sunrise of the month in Estes Park is 6:58 AM on October 1 and the latest sunrise is 32 minutes later at 7:31 AM on October 31.
The latest sunset is 6:43 PM on October 1 and the earliest sunset is 44 minutes earlier at 5:59 PM on October 31.
Daylight saving time is observed in Estes Park during 2021, but it neither starts nor ends during October, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:32 AM and sets 15 hours, 3 minutes later, at 8:35 PM, while on December 21, the shortest day of the year, it rises at 7:21 AM and sets 9 hours, 17 minutes later, at 4:39 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in October in Estes Park
The figure below presents a compact representation of key lunar data for October 2021. 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.
Moon Rise, Set & Phases in October in Estes Park
We 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 Estes Park is essentially constant during October, remaining around 0% throughout.
Humidity Comfort Levels in October in Estes Park
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
This 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 Estes Park is increasing during October, increasing from 6.5 miles per hour to 8.0 miles per hour over the course of the month.
For reference, on January 11, the windiest day of the year, the daily average wind speed is 11.2 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
Average Wind Speed in October in Estes Park
The hourly average wind direction in Estes Park throughout October is predominantly from the west, with a peak proportion of 76% on October 30.
Wind Direction in October in Estes Park
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 (≥ 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 Estes Park typically lasts for 4.0 months (122 days), from around May 25 to around September 24, rarely starting before May 6 or after June 17, and rarely ending before September 6 or after October 11.
The month of October in Estes Park is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 30% to 0% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in October in Estes Park
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 Estes Park are gradually increasing during October, increasing by 53°F, from 1,322°F to 1,375°F, over the course of the month.
Growing Degree Days in October in Estes Park
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. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy in Estes Park is decreasing during October, falling by 1.5 kWh, from 5.1 kWh to 3.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in October in Estes Park
For the purposes of this report, the geographical coordinates of Estes Park are 40.377 deg latitude, -105.522 deg longitude, and 7,549 ft elevation.
The topography within 2 miles of Estes Park contains very significant variations in elevation, with a maximum elevation change of 1,437 feet and an average elevation above sea level of 7,802 feet. Within 10 miles contains very significant variations in elevation (8,035 feet). Within 50 miles also contains extreme variations in elevation (9,662 feet).
The area within 2 miles of Estes Park is covered by shrubs (73%) and trees (16%), within 10 miles by trees (71%) and shrubs (20%), and within 50 miles by trees (41%) and shrubs (22%).
This report illustrates the typical weather in Estes Park, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Estes Park.
For each station, the records are corrected for the elevation difference between that station and Estes Park according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Estes Park is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Estes Park and a given station.
The stations contributing to this reconstruction are: Vance Brand Airport (KLMO, 24%, 38 kilometers, southeast); Fort Collins-Loveland Municipal Airport (KFNL, 22%, 44 kilometers, east); Pumpkin Vine (KPUM, 28%, 75 kilometers, north); and Kremmling, Mc Elroy Airfield (K20V, 26%, 81 kilometers, southwest).
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.
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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The 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.