Average Weather in January in Crystal City Texas, United States
Daily high temperatures increase by 3°F, from 65°F to 68°F, rarely falling below 51°F or exceeding 81°F. The lowest daily average high temperature is 65°F on January 5.
Daily low temperatures are around 45°F, rarely falling below 33°F or exceeding 59°F. The lowest daily average low temperature is 44°F on January 6.
For reference, on August 6, the hottest day of the year, temperatures in Crystal City typically range from 76°F to 99°F, while on January 5, the coldest day of the year, they range from 44°F to 65°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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 January
The month of January in Crystal City experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 43% throughout the month. The highest chance of overcast or mostly cloudy conditions is 45% on January 4.
The clearest day of the month is January 31, with clear, mostly clear, or partly cloudy conditions 59% of the time.
For reference, on January 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on June 12, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover Categories in January
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 Crystal City, the chance of a wet day over the course of January is essentially constant, remaining around 9% throughout.
For reference, the year's highest daily chance of a wet day is 28% on May 29, and its lowest chance is 7% on December 14.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Crystal City is essentially constant, remaining about 0.7 inches throughout, and rarely exceeding 1.8 inches.
Average Monthly Rainfall in January
Over the course of January in Crystal City, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 29 minutes, implying an average daily increase of 57 seconds, and weekly increase of 6 minutes, 42 seconds.
The shortest day of the month is January 1, with 10 hours, 22 minutes of daylight and the longest day is January 31, with 10 hours, 50 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Crystal City is 7:33 AM on January 10 and the earliest sunrise is 6 minutes earlier at 7:27 AM on January 31.
The earliest sunset is 5:53 PM on January 1 and the latest sunset is 24 minutes later at 6:18 PM on January 31.
Daylight saving time is observed in Crystal City during 2021, but it neither starts nor ends during January, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:42 AM and sets 13 hours, 58 minutes later, at 8:40 PM, while on December 21, the shortest day of the year, it rises at 7:28 AM and sets 10 hours, 19 minutes later, at 5:47 PM.
Sunrise & Sunset with Twilight in January
The figure below presents a compact representation of key lunar data for January 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 January
The chance that a given day will be muggy in Crystal City is essentially constant during January, remaining around 1% throughout.
The lowest chance of a muggy day during January is 1% on January 20.
For reference, on June 26, the muggiest day of the year, there are muggy conditions 86% of the time, while on January 20, the least muggy day of the year, there are muggy conditions 1% of the time.
Humidity Comfort Levels in January
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Crystal City is essentially constant during January, remaining within 0.3 miles per hour of 8.0 miles per hour throughout.
For reference, on July 2, the windiest day of the year, the daily average wind speed is 11.0 miles per hour, while on January 10, the calmest day of the year, the daily average wind speed is 7.7 miles per hour.
The lowest daily average wind speed during January is 7.7 miles per hour on January 10.
Average Wind Speed in January
The wind direction in Crystal City during January is predominantly out of the north from January 1 to January 23 and the east from January 23 to January 31.
Wind Direction in January
The growing season in Crystal City typically lasts for 10 months (317 days), from around January 30 to around December 13, rarely starting after February 28, or ending before November 22.
The smallest chance that a given day will be within the growing season in Crystal City during January is 24% on January 2.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in Crystal City are increasing during January, increasing by 203°F, from 0°F to 203°F, over the course of the month.
Growing Degree Days in January
The average daily incident shortwave solar energy in Crystal City is gradually increasing during January, rising by 0.7 kWh, from 3.4 kWh to 4.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Crystal City are 28.677 deg latitude, -99.828 deg longitude, and 554 ft elevation.
The topography within 2 miles of Crystal City is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 555 feet. Within 10 miles is essentially flat (207 feet). Within 50 miles contains only modest variations in elevation (1,280 feet).
The area within 2 miles of Crystal City is covered by shrubs (48%), artificial surfaces (26%), cropland (15%), and grassland (12%), within 10 miles by shrubs (48%) and grassland (28%), and within 50 miles by shrubs (66%) and grassland (25%).
This report illustrates the typical weather in Crystal 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Crystal City.
For each station, the records are corrected for the elevation difference between that station and Crystal 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 Crystal City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Crystal City and a given station.
The stations contributing to this reconstruction are: Garner Field Airport (37%, 60 kilometers, north); Cotulla–La Salle County Airport (34%, 64 kilometers, east); and Piedras Negras International Airport (30%, 69 kilometers, west).
Time zones for airports and weather stations are provided by AskGeo.com .