Lewisville, Texas
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 34° 55° -1° (1918) 95° (1911) 2.24" 0"
February 38° 59° 3° (1905) 95° (1996) 2.91" 0"
March 45° 66° 13° (1980) 100° (1916) 3.62" 0"
April 53° 75° 29° (1989) 101° (2006) 3.16" 0"
May 63° 82° 33° (1903) 105° (1911) 4.9" 0"
June 70° 90° 47° (1903) 109° (1980) 3.92" 0"
July 74° 94° 56° (1972) 112° (1912) 2.38" 0"
August 74° 95° 54° (1915) 115° (1909) 1.84" 0"
September 66° 88° 38° (1995) 109° (1998) 3.37" 0"
October 55° 78° 22° (1993) 102° (1904) 4.02" 0"
November 45° 66° 17° (1976) 89° (2003) 2.94" 0"
December 35° 56° -1° (1989) 89° (1955) 2.69" 0.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 39° 60° 20° (1979) 79° (1970) 0.09" 0"
Dec 2 39° 59° 19° (1985) 81° (1970) 0.09" 0"
Dec 3 38° 59° 18° (1985) 82° (1916) 0.09" 0"
Dec 4 38° 59° 21° (1902) 83° (1970) 0.09" 0"
Dec 5 38° 58° 23° (2009) 84° (1977) 0.1" 0"
Dec 6 37° 58° 19° (1972) 79° (1979) 0.09" 0"
Dec 7 37° 58° 18° (1972) 83° (1966) 0.09" 0"
Dec 8 37° 58° 12° (1917) 81° (1966) 0.1" 0"
Dec 9 37° 57° 14° (1995) 80° (1906) 0.09" 0"
Dec 10 36° 57° 10° (1995) 83° (2007) 0.09" 0.1"
Dec 11 36° 57° 16° (1995) 78° (1996) 0.09" 0"
Dec 12 36° 57° 16° (1917) 82° (1996) 0.08" 0"
Dec 13 36° 56° 13° (1917) 84° (1973) 0.09" 0"
Dec 14 35° 56° 14° (1901) 84° (1908) 0.09" 0"
Dec 15 35° 56° 9° (1901) 81° (1995) 0.09" 0"
Dec 16 35° 56° 10° (1989) 83° (1908) 0.08" 0"
Dec 17 35° 56° 12° (1989) 82° (1908) 0.09" 0"
Dec 18 34° 55° 12° (1989) 78° (2006) 0.08" 0"
Dec 19 34° 55° 13° (1964) 81° (1980) 0.09" 0"
Dec 20 34° 55° 9° (1909) 73° (1976) 0.08" 0"
Dec 21 34° 55° 17° (1916) 79° (2010) 0.09" 0"
Dec 22 34° 55° 4° (1983) 84° (2010) 0.08" 0"
Dec 23 34° 55° -1° (1989) 78° (1964) 0.1" 0"
Dec 24 34° 55° 1° (1989) 84° (1901) 0.09" 0"
Dec 25 34° 54° 9° (1983) 89° (1955) 0.09" 0"
Dec 26 34° 54° 5° (1983) 74° (1907) 0.08" 0"
Dec 27 33° 54° 10° (1983) 81° (2005) 0.08" 0"
Dec 28 33° 54° 20° (1904) 82° (2005) 0.08" 0"
Dec 29 33° 54° 10° (1983) 81° (1907) 0.08" 0"
Dec 30 33° 54° 7° (1983) 77° (1964) 0.07" 0"
Dec 31 33° 54° 9° (1983) 77° (1992) 0.07" 0"
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