![]() This report illustrates the typical weather in San Antonio, based on a statistical analysis of historical hourly weather reports and model reconstructions from Januto December 31, 2016. Our beach/pool temperature score is 0 for perceived temperatures below 65☏, rising linearly to 9 for 75☏, to 10 for 82☏, falling linearly to 9 for 90☏, and to 1 for 100☏ or hotter. Our tourism temperature score is 0 for perceived temperatures below 50☏, rising linearly to 9 for 65☏, to 10 for 75☏, falling linearly to 9 for 80☏, and to 1 for 90☏ or hotter. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. ![]() Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).įor each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. The coldest month of the year in San Antonio is January, with an average low of 43☏ and high of 64☏.Īverage High and Low Temperature in San Antonio The cool season lasts for 2.8 months, from November 27 to February 20, with an average daily high temperature below 70☏. The hottest month of the year in San Antonio is August, with an average high of 95☏ and low of 75☏. The hot season lasts for 3.7 months, from May 30 to September 19, with an average daily high temperature above 89☏. Click on each chart for more information. Lopez also asked motorists to watch for state highway crews expected to be spraying brine on roadways to prevent icing.CoolcomfortablewarmhothotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow73%73%54%54%clearovercastprecipitation: 3.6 inprecipitation: 3.6 in1.4 in1.4 inmuggy: 89%muggy: 89%2%2%drydrybeach/pool score: 6.8beach/pool score: 6.80.70.7 She urged motorists to slow down on their approach to elevated roadways and be on the lookout for ice and give vehicles ahead plenty of distance. "We have a lot of areas that are possibly going to freeze first," said Lopez about the city's many bridges, overpasses, cloverleafs and direct connectors. Still, she said caution should be used by motorists in San Antonio. ![]() ![]() Those are the areas that are affected the most," said Laura Lopez, a spokeswoman for the local TxDOT District. "It's usually the Hill County, the northern part of our district, our San Antonio District, so Comal County, Kendall, Kerr County. The Texas Department of Transportation has been treating area roadways for days leading up to the arrival of possible frozen precipitation, but the biggest concerns are to the north of the city. You're talking a once-in-30-or-40-years event," he said. "The anxiety is obviously understood given how extreme last February's event was, but again, last February was a very rare event. Quigley said this arctic could front is like the typical one or two events South Central Texas can expect most winters. The weather service did report some parts of the Hill Country could see up to 60 hours of freezing air temperatures, while San Antonio could see around 30 hours, so steps should be taken to insulate exterior pipes, bring in pets and cover plants that can't be moved inside. "You're going to want to be layering up, protecting your bare skin when you're going outside Thursday and Friday, but from a standpoint of severity that we saw last February this is going to come nowhere near that," he said. ![]()
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