Weather on October 21
Lewisville, TX
55 Years of Data
Avg High
77°F
Avg Low
53°F
Warmest
2004
79°F avg
Coldest
1976
49°F avg
About This Date
October 21st in Lewisville, TX typically brings pleasant fall weather, with average highs around 77°F and lows near 53°F. Over 55 years of records, the warmest October 21st was in 2004 (79°F average), while the coldest was 1976 (49°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 18% of October 21st dates historically, with the wettest October 21st recording 4.93" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Lewisville, TX? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 57° | 73° | — | — |
| 2024 | 81° | 51° | 66° | — | — |
| 2023 | 90° | 58° | 74° | — | — |
| 2022 | 81° | 50° | 65° | — | — |
| 2021 | 82° | 47° | 64° | — | — |
| 2020 | 87° | 60° | 74° | — | — |
| 2019 | 87° | 53° | 70° | 1.52" | — |
| 2018 | 70° | 49° | 59° | — | — |
| 2017 | 81° | 61° | 71° | — | — |
| 2016 | 73° | 51° | 62° | — | — |
| 2015 | 82° | 58° | 70° | — | — |
| 2014 | 82° | 57° | 70° | — | — |
| 2013 | 71° | 46° | 59° | — | — |
| 2012 | 85° | 56° | 70° | — | — |
| 2011 | 72° | 42° | 57° | — | — |
| 2010 | 80° | 56° | 68° | — | — |
| 2009 | 78° | 59° | 69° | 0.18" | — |
| 2008 | 83° | 57° | 70° | — | — |
| 2007 | 88° | 57° | 72° | — | — |
| 2006 | 71° | 46° | 59° | — | — |
| 2005 | 78° | 50° | 64° | — | — |
| 2004warmest | 85° | 73° | 79° | — | — |
| 2003 | 91° | 59° | 75° | — | — |
| 2002 | 70° | 56° | 63° | 0.03" | — |
| 2001 | 78° | 61° | 69° | — | — |
| 2000 | 73° | 61° | 67° | 0.13" | — |
| 1999 | 80° | 50° | 65° | — | — |
| 1998 | 70° | 55° | 62° | — | — |
| 1997 | 58° | 47° | 52° | 0.84" | — |
| 1996 | 75° | 43° | 59° | 2.26" | — |
| 1995 | 78° | 44° | 61° | — | — |
| 1994 | 86° | 63° | 74° | 4.93" | — |
| 1993 | 63° | 48° | 55° | — | — |
| 1992 | 81° | 63° | 72° | — | — |
| 1991 | 79° | 52° | 65° | — | — |
| 1990 | 64° | 46° | 55° | 0.28" | — |
| 1989 | 81° | 46° | 63° | — | — |
| 1988 | 72° | 55° | 63° | — | — |
| 1987 | 66° | 40° | 53° | — | — |
| 1986 | 72° | 54° | 63° | — | — |
| 1985 | 72° | 57° | 64° | — | — |
| 1984 | 69° | 50° | 60° | — | — |
| 1983 | 73° | 52° | 62° | — | — |
| 1982 | 60° | 42° | 51° | 2.03" | — |
| 1981 | 78° | 48° | 63° | — | — |
| 1980 | 76° | 49° | 62° | — | — |
| 1979 | 88° | 63° | 75° | — | — |
| 1978 | 88° | 50° | 69° | — | — |
| 1977 | 83° | 57° | 70° | — | — |
| 1976coldest | 67° | 31° | 49° | — | — |
| 1975 | 82° | 56° | 69° | — | — |
| 1974 | 73° | 54° | 63° | — | — |
| 1973 | 80° | 50° | 65° | — | — |
| 1972 | 69° | 56° | 62° | 1.96" | — |
| 1971 | 72° | 53° | 62° | — | — |
55 years of data from DENTON 2 SE