Dallas is located in one of the hottest areas of the United States. The city can become very hot and humid in the summer. It can also drop below freezing at night during the short winter. Dallas is located in an area that tends to have a number of unpredictable weather shifts throughout the year. Warm air from the south often pours into the city and moderates temperatures during the winter. Cold air from the north streams into the city and creates sudden frigid temperatures during the fall and winter. Visitors who are coming to Dallas should generally prepare for comfortable to very warm weather every season except for the winter.
The average daytime temperature in Dallas during the summer months is above 90 degrees Fahrenheit. Hot air and humidity can actually make it feel as hot as 115 degrees Fahrenheit for several days at a time although this is not the actual air temperature. The city experiences regular heat waves during June, July and August. It usually rains a few days each month during the summer although there have been years where rain is scare or occurs all at once during a single downpour that floods roadways. Tourists who are coming to the city during the summer will need to dress for hot weather and should pack an umbrella. Sunscreen is also necessary because most days are sunny.
The winter in Dallas can be very inconsistent. The temperatures are generally mild during the day and then very cold at night. It is not uncommon to see a 30 degree or more change in temperature from the daytime to the nighttime. This is partly because the heat dissipates quickly from the ground. It normally snows one or two days during the winter with only minor accumulation. Warm air from the Gulf of Mexico often increases temperatures. Cold air from the north will interact with weather systems and create freezing rain that makes traveling on the roads dangerous. This is most common in January and February. Visitors coming in the winter should dress in layers and should bring a coat.
Spring and fall are the two best seasons for visiting Dallas. The temperatures average between 60 degrees and 75 degrees Fahrenheit. There are storms during this time. There are more storms in the spring although the storms in the fall can be much more severe. Tornadoes threaten the city from time to time but pose no real risk to visitors inside of Dallas and often stay away from the downtown area. Spring and fall can be unpredictable with temperatures rising and falling sharply over the course of a few days. Visitors who are coming to Dallas in the spring or fall should pack a light coat along with long pants. It is not a good idea to come to Dallas during these months with only shorts and open sandals.