Culture. Basil is easily grown from seed or from tip cuttings of overwintered plants. Because basil is sensitive to cold temperatures, seeds germinate and grow best when the media temperature is at least 70 degrees. Seeds will germinate in about 5-7 days.asil is easily grown from seed or from tip cuttings of overwintered plants. Because basil is sensitive to cold temperatures, seeds germinate and grow best when the media temperature is at least 70 degrees.
The hottest May day in Dallas for the past 57 years was 103 degrees Fahrenheit, registered on May 30, 1985, while the mean high temperature is 83. The lowest documented temperature for Dallas for the past 57 years in May was 36 measured on May 1, 1908, while the standard low daily temperature for the month is 63.
Weather in Dallas in January 2018. Expect 12Â°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Dallas in January. Check more long-term weather averages for Dallas in January before you book your next holiday to Texas in 2018. 1  Dallas weather overview. 2  Dallas monthly weather. 3  Dallas 5-day forecast. 4  Texas holidays. 5  Texas map. 6  More destinations. 7  Back to Texas.