Frosts do occasionally occur during the winter – 9.9 mornings fall to or below freezing during an average winter – but measurable snow has fallen in Hebbronville only three times in 112 years – on March 10, 1932, on January 20, 1940 during South Texas’ coolest month on record, National Oceanic and Atmospheric Administration; Temperature (˚F) Ranking (low to high): Texas – Division 9: South and on Christmas Day of 2004 when 5 inches fell in a famous “White Christmas”.