Weather on December 21
Lewisville, TX
55 Years of Data
Avg High
57°F
Avg Low
34°F
Warmest
2010
65°F avg
Coldest
1989
18°F avg
About This Date
December 21st in Lewisville, TX typically brings cool winter weather, with average highs around 57°F and lows near 34°F. Over 55 years of records, the warmest December 21st was in 2010 (65°F average), while the coldest was 1989 (18°F) — a 47°F range across recorded history. Rain or other precipitation has occurred on about 18% of December 21st dates historically, with the wettest December 21st recording 1.91" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 21st in Lewisville, TX? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 35° | 58° | — | — |
| 2024 | 55° | 31° | 43° | — | — |
| 2023 | 64° | 38° | 51° | — | — |
| 2022 | 43° | 29° | 36° | — | — |
| 2021 | 51° | 33° | 42° | — | — |
| 2020 | 62° | 35° | 49° | — | — |
| 2019 | 48° | 42° | 45° | 0.1" | — |
| 2018 | 59° | 38° | 48° | — | — |
| 2017 | 61° | 45° | 53° | — | — |
| 2016 | 54° | 29° | 41° | — | — |
| 2015 | 63° | 49° | 56° | — | — |
| 2014 | 47° | 43° | 45° | — | — |
| 2013 | 65° | 33° | 49° | 1.91" | — |
| 2012 | 51° | 31° | 41° | — | — |
| 2011 | 48° | 32° | 40° | — | — |
| 2010warmest | 79° | 52° | 65° | — | — |
| 2009 | 65° | 31° | 48° | — | — |
| 2008 | 64° | 19° | 42° | — | — |
| 2007 | 64° | 38° | 51° | — | — |
| 2006 | 53° | 43° | 48° | 0.1" | — |
| 2005 | 54° | 35° | 44° | 0.05" | — |
| 2004 | 65° | 44° | 54° | — | — |
| 2003 | 70° | 46° | 58° | — | — |
| 2002 | 69° | 42° | 56° | — | — |
| 2001 | 62° | 36° | 49° | — | — |
| 2000 | 47° | 29° | 38° | — | — |
| 1999 | 44° | 29° | 36° | — | — |
| 1998 | 52° | 21° | 36° | 0.03" | — |
| 1997 | 53° | 37° | 45° | 1.19" | — |
| 1996 | 66° | 38° | 52° | — | — |
| 1995 | 38° | 33° | 35° | — | — |
| 1994 | 62° | 33° | 48° | — | — |
| 1993 | 53° | 27° | 40° | — | — |
| 1992 | 59° | 39° | 49° | 0.05" | — |
| 1991 | 45° | 43° | 44° | 0.03" | — |
| 1990 | 37° | 12° | 25° | — | — |
| 1989coldest | 27° | 10° | 18° | — | — |
| 1988 | 67° | 37° | 52° | — | — |
| 1987 | 57° | 34° | 45° | — | — |
| 1986 | 50° | 38° | 44° | — | — |
| 1985 | 59° | 21° | 40° | — | — |
| 1984 | 67° | 61° | 64° | 0.13" | — |
| 1983 | 28° | 15° | 22° | 0.05" | — |
| 1982 | 69° | 39° | 54° | — | — |
| 1981 | 81° | 37° | 59° | — | — |
| 1980 | 38° | 17° | 27° | — | — |
| 1979 | 70° | 50° | 60° | — | — |
| 1978 | 67° | 30° | 48° | — | — |
| 1977 | 50° | 40° | 45° | — | — |
| 1976 | 38° | 16° | 27° | — | — |
| 1975 | 58° | 24° | 41° | — | — |
| 1974 | 66° | 34° | 50° | — | — |
| 1973 | 58° | 27° | 42° | — | — |
| 1972 | 63° | 42° | 52° | — | — |
| 1971 | 67° | 38° | 52° | — | — |
55 years of data from DENTON 2 SE