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October Weather at Stevens Field Colorado, United States

Daily high temperatures decrease by 13°F, from 67°F to 54°F, rarely falling below 43°F or exceeding 74°F.

Daily low temperatures decrease by 8°F, from 38°F to 29°F, rarely falling below 21°F or exceeding 45°F.

For reference, on July 7, the hottest day of the year, temperatures at Stevens Field typically range from 50°F to 81°F, while on January 8, the coldest day of the year, they range from 13°F to 37°F.

Average High and Low Temperature in October at Stevens Field

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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 at Stevens Field

Average Hourly Temperature in October at Stevens FieldOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNovfreezingfreezingvery coldcoldcoolcomfortable
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
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Yapraklı, Turkey (6,510 miles away) and Fareydūnshahr, Iran (7,375 miles) are the far-away foreign places with temperatures most similar to Stevens Field (view comparison).

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The month of October at Stevens Field experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 21% to 30%.

The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 79% of the time.

For reference, on February 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 40%, while on September 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 79%.

Cloud Cover Categories in October at Stevens Field

Cloud Cover Categories in October at Stevens FieldOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 179%Oct 179%Oct 3170%Oct 3170%Oct 1176%Oct 1176%Oct 2172%Oct 2172%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Stevens Field, the chance of a wet day over the course of October is gradually decreasing, starting the month at 19% and ending it at 17%.

For reference, the year's highest daily chance of a wet day is 32% on August 10, and its lowest chance is 8% on June 11.

Over the course of October at Stevens Field, the chance of a day with only rain decreases from 19% to 12%, the chance of a day with mixed snow and rain increases from 1% to 4%, and the chance of a day with only snow remains an essentially constant 1% throughout.

Probability of Precipitation in October at Stevens Field

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).

Rainfall

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 at Stevens Field is gradually decreasing, starting the month at 1.5 inches, when it rarely exceeds 2.8 inches or falls below 0.3 inches, and ending the month at 1.1 inches, when it rarely exceeds 2.2 inches or falls below 0.1 inches.

Average Monthly Rainfall in October at Stevens Field

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 thin dotted line is the corresponding average snowfall.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during October at Stevens Field is increasing, starting the month at 0.3 inches, when it rarely exceeds 1.2 inches or falls below -0.0 inches, and ending the month at 1.7 inches, when it rarely exceeds 5.4 inches.

Average Monthly Snowfall in October at Stevens Field

The average snowfall (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 thin dotted line is the corresponding average rainfall.

Over the course of October at Stevens Field, 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, 8 minutes, implying an average daily decrease of 2 minutes, 16 seconds, and weekly decrease of 15 minutes, 52 seconds.

The shortest day of the month is October 31, with 10 hours, 38 minutes of daylight and the longest day is October 1, with 11 hours, 46 minutes of daylight.

Hours of Daylight and Twilight in October at Stevens Field

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month at Stevens Field is 7:04 AM on October 1 and the latest sunrise is 28 minutes later at 7:32 AM on October 31.

The latest sunset is 6:50 PM on October 1 and the earliest sunset is 40 minutes earlier at 6:10 PM on October 31.

Daylight saving time is observed at Stevens Field during 2024, but it neither starts nor ends during October, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:47 AM and sets 14 hours, 44 minutes later, at 8:32 PM, while on December 21, the shortest day of the year, it rises at 7:18 AM and sets 9 hours, 36 minutes later, at 4:54 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in October at Stevens Field

Sunrise & Sunset with Twilight and Daylight Saving Time in October at Stevens FieldOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSepNov7:04 AM7:04 AMOct 16:50 PMOct 16:50 PM7:32 AM7:32 AMOct 316:10 PMOct 316:10 PM7:13 AM7:13 AMOct 116:35 PMOct 116:35 PM7:22 AM7:22 AMOct 216:22 PMOct 216:22 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of October. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

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.

Solar Elevation and Azimuth in October at Stevens Field

Solar Elevation and Azimuth in October at Stevens FieldOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNov00101020202030304050000101020203030304050
northeastsouthwest
Solar elevation and azimuth over the course of October 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for October 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.

Moon Rise, Set & Phases in October at Stevens Field

Moon Rise, Set & Phases in October at Stevens FieldOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 27:56 PMSep 27:56 PMSep 178:35 PMSep 178:35 PMOct 212:50 PMOct 212:50 PMOct 175:27 AMOct 175:27 AMNov 16:48 AMNov 16:48 AMNov 152:29 PMNov 152:29 PMNov 3011:22 PMNov 3011:22 PM6:08 AM6:08 AM7:40 PM7:40 PM7:10 PM7:10 PM7:28 AM7:28 AM6:56 AM6:56 AM6:48 PM6:48 PM6:03 PM6:03 PM7:31 AM7:31 AM7:45 AM7:45 AM6:05 PM6:05 PM4:38 PM4:38 PM7:56 AM7:56 AM6:40 AM6:40 AM4:13 PM4:13 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Oct 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
1%5:59 AME6:28 PMW-12:15 PMS252,369 mi
2
0%6:56 AME6:48 PMW-12:53 PMS252,597 mi
3
1%7:53 AME7:10 PMWSW-1:32 PMS252,396 mi
4
4%8:52 AMESE7:34 PMWSW-2:13 PMS251,753 mi
5
8%9:52 AMESE8:02 PMWSW-2:57 PMS250,639 mi
6
15%10:54 AMESE8:35 PMWSW-3:44 PMS249,018 mi
7
23%11:57 AMSE9:14 PMSW-4:36 PMS246,857 mi
8
32%12:58 PMSE10:03 PMSW-5:30 PMS244,153 mi
9
42%1:55 PMSE11:01 PMSW-6:28 PMS240,951 mi
10
50%2:46 PMSE--7:26 PMS237,362 mi
11
64%-12:06 AMSW3:29 PMESE8:23 PMS233,574 mi
12
75%-1:17 AMWSW4:06 PMESE9:18 PMS229,852 mi
13
85%-2:31 AMWSW4:38 PMESE10:11 PMS226,516 mi
14
92%-3:45 AMWSW5:07 PME11:01 PMS223,904 mi
15
98%-4:59 AMW5:34 PME11:52 PMS222,319 mi
16
99%-6:14 AMW6:03 PME--
17
100%-7:31 AMWNW6:33 PMENE12:43 AMS221,973 mi
18
99%-8:49 AMWNW7:08 PMENE1:37 AMS222,935 mi
19
95%-10:08 AMWNW7:50 PMENE2:33 AMS225,116 mi
20
88%-11:24 AMNW8:40 PMNE3:33 AMS228,279 mi
21
79%-12:32 PMNW9:37 PMNE4:34 AMS232,084 mi
22
69%-1:30 PMNW10:41 PMNE5:35 AMS236,153 mi
23
58%-2:16 PMWNW11:47 PMENE6:32 AMS240,134 mi
24
50%-2:54 PMWNW-7:24 AMS243,750 mi
25
38%12:52 AMENE3:24 PMWNW-8:12 AMS246,811 mi
26
28%1:54 AMENE3:50 PMWNW-8:55 AMS249,211 mi
27
20%2:54 AMENE4:12 PMW-9:36 AMS250,917 mi
28
13%3:52 AME4:33 PMW-10:15 AMS251,948 mi
29
7%4:49 AME4:54 PMW-10:53 AMS252,362 mi
30
3%5:47 AME5:15 PMWSW-11:32 AMS252,233 mi
31
1%6:45 AMESE5:39 PMWSW-12:12 PMS251,641 mi

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 at Stevens Field is essentially constant during October, remaining around 0% throughout.

For reference, on July 19, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in October at Stevens Field

Humidity Comfort Levels in October at Stevens FieldOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SepNovOct 10%Oct 10%Oct 310%Oct 310%Oct 110%Oct 110%Oct 210%Oct 210%drydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 at Stevens Field is essentially constant during October, remaining within 0.1 miles per hour of 5.9 miles per hour throughout.

For reference, on April 10, the windiest day of the year, the daily average wind speed is 8.0 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 4.7 miles per hour.

Average Wind Speed in October at Stevens Field

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Stevens Field throughout October is predominantly from the west, with a peak proportion of 52% on October 29.

Wind Direction in October at Stevens Field

Wind Direction in October at Stevens FieldOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%SepNovwestsouthnortheast
northeastsouthwest
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 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 at Stevens Field typically lasts for 4.2 months (130 days), from around May 23 to around September 30, rarely starting before May 3 or after June 13, and rarely ending before September 10 or after October 20.

The month of October at Stevens Field 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 47% to 1% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in October at Stevens Field

Time Spent in Various Temperature Bands and the Growing Season in October at Stevens FieldOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 147%Oct 147%Oct 311%Oct 311%Oct 1124%Oct 1124%Oct 218%Oct 218%50%Sep 3050%Sep 3090%Sep 1090%Sep 10freezingvery coldcoldcoolcomfortablewarmfrigid
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
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within 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 at Stevens Field are gradually increasing during October, increasing by 94°F, from 1,856°F to 1,949°F, over the course of the month.

Growing Degree Days in October at Stevens Field

Growing Degree Days in October at Stevens FieldOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031311,600°F1,600°F1,700°F1,700°F1,800°F1,800°F1,900°F1,900°F2,000°F2,000°F2,100°F2,100°F2,200°F2,200°FSepNovOct 11,856°FOct 11,856°FOct 311,949°FOct 311,949°FOct 111,901°FOct 111,901°FOct 211,931°FOct 211,931°F
The average growing degree days accumulated over the course of October, with 25th to 75th and 10th to 90th percentile bands.

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 at Stevens Field is decreasing during October, falling by 1.4 kWh, from 5.5 kWh to 4.1 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in October at Stevens Field

Average Daily Incident Shortwave Solar Energy in October at Stevens FieldOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSepNovOct 15.5 kWhOct 15.5 kWhOct 314.1 kWhOct 314.1 kWhOct 115.0 kWhOct 115.0 kWhOct 214.5 kWhOct 214.5 kWh
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 the purposes of this report, the geographical coordinates of Stevens Field are 37.289 deg latitude, -107.057 deg longitude, and 7,644 ft elevation.

The topography within 2 miles of Stevens Field contains significant variations in elevation, with a maximum elevation change of 784 feet and an average elevation above sea level of 7,593 feet. Within 10 miles contains significant variations in elevation (5,167 feet). Within 50 miles also contains extreme variations in elevation (8,376 feet).

The area within 2 miles of Stevens Field is covered by shrubs (51%) and trees (49%), within 10 miles by trees (74%) and shrubs (24%), and within 50 miles by trees (57%) and shrubs (31%).

This report illustrates the typical weather at Stevens Field, 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

Stevens Field has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Pagosa Springs, Wolf Creek Pass; Durango–La Plata County Airport; Telluride Regional Airport; San Luis Valley Regional Airport; Saguache Municipal Airport; Gunnison County Airport; Four Corners Regional Airport; and Salida Mountain, Monarch Pass.

Other Data

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 © OpenStreetMap contributors.

Disclaimer

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.

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