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December Weather in Horizon City Texas, United States

Daily high temperatures decrease by 4°F, from 61°F to 57°F, rarely falling below 47°F or exceeding 70°F. The lowest daily average high temperature is 57°F on December 31.

Daily low temperatures decrease by 4°F, from 37°F to 34°F, rarely falling below 24°F or exceeding 48°F.

For reference, on June 22, the hottest day of the year, temperatures in Horizon City typically range from 71°F to 96°F, while on January 6, the coldest day of the year, they range from 34°F to 57°F.

Average High and Low Temperature in December in Horizon City

Average High and Low Temperature in December in Horizon City18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313120°F20°F25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°FNovJanDec 3157°FDec 3157°F34°F34°FDec 161°FDec 161°F37°F37°FDec 1159°FDec 1159°F35°F35°FDec 2157°FDec 2157°F34°F34°F
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 December. 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 December in Horizon City

Average Hourly Temperature in December in Horizon City18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanvery coldvery coldcoldcoolcoolcomfortable
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.

Caucete, Argentina (5,036 miles away) is the far-away foreign place with temperatures most similar to Horizon City (view comparison).

Compare Horizon City to another city:

Clouds

The month of December in Horizon City experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 33% throughout the month.

The clearest day of the month is December 2, with clear, mostly clear, or partly cloudy conditions 69% of the time.

For reference, on August 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 39%, while on June 9, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 81%.

Cloud Cover Categories in December in Horizon City

Cloud Cover Categories in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 169%Dec 169%Dec 3165%Dec 3165%Dec 1168%Dec 1168%Dec 2166%Dec 2166%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.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Horizon City, the chance of a wet day over the course of December is essentially constant, remaining around 9% throughout.

For reference, the year's highest daily chance of a wet day is 30% on August 1, and its lowest chance is 3% on April 5.

Probability of Precipitation in December in Horizon City

Probability of Precipitation in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%1%1%2%2%3%3%4%4%5%5%6%6%7%7%8%8%9%9%10%10%11%11%NovJanDec 1810%Dec 1810%Dec 18%Dec 18%Dec 318%Dec 318%rainsnow
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 December in Horizon City is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.2 inches.

Average Monthly Rainfall in December in Horizon City

Average Monthly Rainfall in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 in1.4 in1.4 inNovJanDec 10.4 inDec 10.4 inDec 310.4 inDec 310.4 inDec 110.4 inDec 110.4 inDec 210.4 inDec 210.4 in
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 liquid-equivalent snowfall.

Sun

Over the course of December in Horizon City, the length of the day is essentially constant. The shortest day of the month is December 21, with 10 hours, 5 minutes of daylight and the longest day is December 1, with 10 hours, 14 minutes of daylight.

Hours of Daylight and Twilight in December in Horizon City

Hours of Daylight and Twilight in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2110 hr, 5 minDec 2110 hr, 5 minnightnightdaydayDec 110 hr, 14 minDec 110 hr, 14 min
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 in Horizon City is 6:47 AM on December 1 and the latest sunrise is 17 minutes later at 7:04 AM on December 31.

The earliest sunset is 5:00 PM on December 3 and the latest sunset is 11 minutes later at 5:11 PM on December 31.

Daylight saving time is observed in Horizon City during 2021, but it neither starts nor ends during December, so the entire month is in standard time.

For reference, on June 21, the longest day of the year, the Sun rises at 6:00 AM and sets 14 hours, 13 minutes later, at 8:13 PM, while on December 21, the shortest day of the year, it rises at 7:00 AM and sets 10 hours, 5 minutes later, at 5:05 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in December in Horizon City

Sunrise & Sunset with Twilight and Daylight Saving Time in December in Horizon City18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNovJan6:47 AM6:47 AMDec 15:00 PMDec 15:00 PM7:04 AM7:04 AMDec 315:11 PMDec 315:11 PM6:54 AM6:54 AMDec 115:01 PMDec 115:01 PM7:00 AM7:00 AMDec 215:05 PMDec 215:05 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of December. 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.

Moon

The figure below presents a compact representation of key lunar data for December 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 December in Horizon City

Moon Rise, Set & Phases in December in Horizon City18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 43:15 PMNov 43:15 PMNov 191:58 AMNov 191:58 AMDec 412:44 AMDec 412:44 AMDec 189:36 PMDec 189:36 PMJan 211:34 AMJan 211:34 AMJan 174:49 PMJan 174:49 PMJan 3110:47 PMJan 3110:47 PM7:02 AM7:02 AM6:20 PM6:20 PM4:48 PM4:48 PM6:51 AM6:51 AM7:15 AM7:15 AM5:30 PM5:30 PM4:43 PM4:43 PM7:32 AM7:32 AM7:09 AM7:09 AM5:14 PM5:14 PM5:13 PM5:13 PM7:51 AM7:51 AM6:49 AM6:49 AM5:11 PM5:11 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.

Humidity

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 Horizon City is essentially constant during December, remaining around 0% throughout.

For reference, on August 4, the muggiest day of the year, there are muggy conditions 6% of the time, while on October 21, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in December in Horizon City

Humidity Comfort Levels in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 10%Dec 10%Dec 310%Dec 310%Dec 110%Dec 110%Dec 210%Dec 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.

Wind

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 Horizon City is essentially constant during December, remaining within 0.1 miles per hour of 8.3 miles per hour throughout.

For reference, on April 11, the windiest day of the year, the daily average wind speed is 11.0 miles per hour, while on August 15, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.

The lowest daily average wind speed during December is 8.2 miles per hour on December 17.

Average Wind Speed in December in Horizon City

Average Wind Speed in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphNovJanDec 178.2 mphDec 178.2 mphDec 18.3 mphDec 18.3 mphDec 318.4 mphDec 318.4 mph
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 in Horizon City throughout December is predominantly from the west, with a peak proportion of 45% on December 7.

Wind Direction in December in Horizon City

Wind Direction in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwesteastsouthnorth
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).

Growing Season

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 Horizon City typically lasts for 8.4 months (257 days), from around March 6 to around November 18, rarely starting before February 9 or after April 4, and rarely ending before October 30 or after December 6.

The month of December in Horizon City is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season reaching a low of -0% on December 29.

Time Spent in Various Temperature Bands and the Growing Season in December in Horizon City

Time Spent in Various Temperature Bands and the Growing Season in December in Horizon Citygrowing season1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 119%Dec 119%Dec 31-0%Dec 31-0%Dec 113%Dec 113%Dec 210%Dec 210%50%Nov 1850%Nov 18freezingvery coldcoldcoolcomfortablewarm
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 in Horizon City are gradually increasing during December, increasing by 76°F, from 5,947°F to 6,023°F, over the course of the month.

Growing Degree Days in December in Horizon City

The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 Horizon City is essentially constant during December, remaining within 0.1 kWh of 3.6 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 3.5 kWh on December 23.

Average Daily Incident Shortwave Solar Energy in December in Horizon City

Average Daily Incident Shortwave Solar Energy in December in Horizon City1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWhNovJanDec 233.5 kWhDec 233.5 kWhDec 13.7 kWhDec 13.7 kWhDec 113.6 kWhDec 113.6 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.

Topography

For the purposes of this report, the geographical coordinates of Horizon City are 31.693 deg latitude, -106.207 deg longitude, and 4,019 ft elevation.

The topography within 2 miles of Horizon City contains only modest variations in elevation, with a maximum elevation change of 187 feet and an average elevation above sea level of 4,004 feet. Within 10 miles contains only modest variations in elevation (991 feet). Within 50 miles contains very significant variations in elevation (5,440 feet).

The area within 2 miles of Horizon City is covered by shrubs (98%), within 10 miles by shrubs (83%), and within 50 miles by shrubs (87%).

Data Sources

This report illustrates the typical weather in Horizon City, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Horizon City.

For each station, the records are corrected for the elevation difference between that station and Horizon City 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 Horizon City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Horizon City and a given station.

The stations contributing to this reconstruction are: El Paso International Airport (KELP, 95%, 21 kilometers, northwest) and Pine Springs, Guadalupe Mountains National Park (KGDP, 5%, 133 kilometers, east).

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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.