Weather on August 21
Grand Prairie, TX
55 Years of Data
Avg High
96°F
Avg Low
74°F
Warmest
2023
95°F avg
Coldest
2015
69°F avg
About This Date
August 21st in Grand Prairie, TX typically brings hot summer weather, with average highs around 96°F and lows near 74°F. Over 55 years of records, the warmest August 21st was in 2023 (95°F average), while the coldest was 2015 (69°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 16% of August 21st dates historically, with the wettest August 21st recording 3.15" 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 21st in Grand Prairie, TX? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 96° | 77° | 87° | 0.36" | — |
| 2024 | 97° | 78° | 87° | — | — |
| 2023warmest | 105° | 84° | 95° | — | — |
| 2022 | 92° | 74° | 83° | 3.15" | — |
| 2021 | 96° | 78° | 87° | — | — |
| 2020 | 96° | 68° | 82° | — | — |
| 2019 | 99° | 78° | 88° | — | — |
| 2018 | 93° | 73° | 83° | — | — |
| 2017 | 96° | 78° | 87° | — | — |
| 2016 | 79° | 72° | 75° | 0.71" | — |
| 2015coldest | 73° | 64° | 69° | — | — |
| 2014 | 95° | 77° | 86° | — | — |
| 2013 | 97° | 71° | 84° | — | — |
| 2012 | 90° | 67° | 78° | 0.13" | — |
| 2011 | 103° | 62° | 82° | — | — |
| 2010 | 101° | 80° | 90° | 0.36" | — |
| 2009 | 98° | 74° | 86° | — | — |
| 2008 | 85° | 70° | 77° | — | — |
| 2007 | 90° | 70° | 80° | — | — |
| 2006 | 99° | 84° | 91° | — | — |
| 2005 | 97° | 80° | 88° | — | — |
| 2004 | 86° | 71° | 79° | — | — |
| 2003 | 97° | 80° | 88° | — | — |
| 2002 | 95° | 79° | 87° | — | — |
| 2001 | 95° | 74° | 84° | — | — |
| 2000 | 101° | 74° | 87° | — | — |
| 1999 | 100° | 69° | 85° | — | — |
| 1998 | 99° | 75° | 87° | — | — |
| 1997 | 99° | 73° | 86° | — | — |
| 1996 | 93° | 75° | 84° | — | — |
| 1995 | 101° | 76° | 88° | — | — |
| 1994 | 87° | 69° | 78° | — | — |
| 1993 | 102° | 77° | 90° | — | — |
| 1992 | 90° | 67° | 78° | — | — |
| 1991 | 87° | 78° | 83° | — | — |
| 1990 | 102° | 76° | 89° | 0.1" | — |
| 1989 | 93° | 75° | 84° | — | — |
| 1988 | 102° | 80° | 91° | — | — |
| 1987 | 102° | 79° | 90° | — | — |
| 1986 | 92° | 78° | 85° | — | — |
| 1985 | 100° | 74° | 87° | — | — |
| 1984 | 100° | 79° | 89° | — | — |
| 1983 | 94° | 77° | 85° | — | — |
| 1982 | 98° | 76° | 87° | — | — |
| 1981 | 90° | 68° | 79° | — | — |
| 1980 | 105° | 75° | 90° | — | — |
| 1979 | 97° | 69° | 83° | 0.28" | — |
| 1978 | 102° | 76° | 89° | 1.24" | — |
| 1977 | 89° | 77° | 83° | — | — |
| 1976 | 92° | 72° | 82° | — | — |
| 1975 | 100° | 76° | 88° | 0.03" | — |
| 1974 | 98° | 73° | 86° | — | — |
| 1973 | 97° | 73° | 85° | — | — |
| 1972 | 100° | 73° | 87° | — | — |
| 1971 | 93° | 74° | 83° | — | — |
55 years of data from DALLAS HENSLEY FLD NAS