Weather on August 20
Lewisville, TX
55 Years of Data
Avg High
96°F
Avg Low
73°F
Warmest
2011
95°F avg
Coldest
1992
73°F avg
About This Date
August 20th in Lewisville, TX typically brings hot summer weather, with average highs around 96°F and lows near 73°F. Over 55 years of records, the warmest August 20th was in 2011 (95°F average), while the coldest was 1992 (73°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 15% of August 20th dates historically, with the wettest August 20th recording 8.59" 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 August 20th in Lewisville, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 102° | 74° | 88° | — | — |
| 2024 | 108° | 82° | 95° | — | — |
| 2023 | 108° | 81° | 94° | — | — |
| 2022 | 92° | 72° | 82° | — | — |
| 2021 | 92° | 74° | 83° | 0.13" | — |
| 2020 | 93° | 67° | 80° | — | — |
| 2019 | 99° | 81° | 90° | — | — |
| 2018 | 95° | 77° | 86° | — | — |
| 2017 | 95° | 77° | 86° | — | — |
| 2016 | 85° | 68° | 76° | 8.59" | — |
| 2015 | 84° | 64° | 74° | 0.48" | — |
| 2014 | 93° | 78° | 86° | — | — |
| 2013 | 95° | 70° | 82° | — | — |
| 2012 | 91° | 66° | 79° | — | — |
| 2011warmest | 107° | 83° | 95° | — | — |
| 2010 | 99° | 80° | 89° | — | — |
| 2009 | 99° | 76° | 87° | — | — |
| 2008 | 76° | 70° | 73° | 1.83" | — |
| 2007 | 90° | 77° | 83° | — | — |
| 2006 | 103° | 82° | 92° | — | — |
| 2005 | 99° | 78° | 88° | — | — |
| 2004 | 89° | 68° | 79° | — | — |
| 2003 | 98° | 79° | 88° | — | — |
| 2002 | 97° | 77° | 87° | — | — |
| 2001 | 98° | 75° | 87° | — | — |
| 2000 | 101° | 77° | 89° | — | — |
| 1999 | 98° | 71° | 85° | — | — |
| 1998 | 100° | 76° | 88° | — | — |
| 1997 | 98° | 75° | 87° | 0.05" | — |
| 1996 | 92° | 71° | 81° | — | — |
| 1995 | 100° | 75° | 88° | 0.2" | — |
| 1994 | 94° | 71° | 82° | 0.33" | — |
| 1993 | 101° | 73° | 87° | — | — |
| 1992coldest | 85° | 62° | 73° | — | — |
| 1991 | 94° | 70° | 82° | — | — |
| 1990 | 99° | 77° | 88° | — | — |
| 1989 | 93° | 75° | 84° | — | — |
| 1988 | 95° | 75° | 85° | — | — |
| 1987 | 100° | 72° | 86° | — | — |
| 1986 | 97° | 75° | 86° | — | — |
| 1985 | 104° | 72° | 88° | — | — |
| 1984 | 104° | 74° | 89° | — | — |
| 1983 | 92° | 74° | 83° | — | — |
| 1982 | 97° | 68° | 82° | — | — |
| 1981 | 87° | 64° | 76° | — | — |
| 1980 | 102° | 75° | 89° | — | — |
| 1979 | 94° | 67° | 80° | — | — |
| 1978 | 99° | 67° | 83° | — | — |
| 1977 | 82° | 68° | 75° | 1.32" | — |
| 1976 | 91° | 66° | 79° | — | — |
| 1975 | 94° | 73° | 83° | — | — |
| 1974 | 97° | 71° | 84° | — | — |
| 1973 | 96° | 72° | 84° | — | — |
| 1972 | 96° | 74° | 85° | — | — |
| 1971 | 92° | 72° | 82° | — | — |
55 years of data from DENTON 2 SE