Weather on August 21
Waco, TX
55 Years of Data
Avg High
96°F
Avg Low
74°F
Warmest
2011
91°F avg
Coldest
1992
74°F avg
About This Date
August 21st in Waco, 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 2011 (91°F average), while the coldest was 1992 (74°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 9% of August 21st dates historically, with the wettest August 21st recording 2.03" 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 Waco, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 74° | 86° | 1.85" | — |
| 2024 | 104° | 78° | 91° | — | — |
| 2023 | 97° | 65° | 81° | — | — |
| 2022 | 98° | 72° | 85° | — | — |
| 2021 | 96° | 77° | 87° | — | — |
| 2020 | 97° | 68° | 82° | — | — |
| 2019 | 99° | 77° | 88° | — | — |
| 2018 | 99° | 81° | 90° | — | — |
| 2017 | 98° | 79° | 88° | — | — |
| 2016 | 80° | 73° | 77° | — | — |
| 2015 | 97° | 69° | 83° | 1.68" | — |
| 2014 | 98° | 79° | 88° | — | — |
| 2013 | 96° | 74° | 85° | — | — |
| 2012 | 92° | 68° | 80° | — | — |
| 2011warmest | 104° | 79° | 91° | — | — |
| 2010 | 99° | 79° | 89° | — | — |
| 2009 | 98° | 75° | 87° | — | — |
| 2008 | 91° | 73° | 82° | 2.03" | — |
| 2007 | 94° | 75° | 84° | — | — |
| 2006 | 101° | 80° | 90° | — | — |
| 2005 | 96° | 77° | 87° | — | — |
| 2004 | 90° | 70° | 80° | — | — |
| 2003 | 99° | 77° | 88° | — | — |
| 2002 | 96° | 75° | 86° | — | — |
| 2001 | 100° | 77° | 89° | — | — |
| 2000 | 99° | 75° | 87° | — | — |
| 1999 | 99° | 77° | 88° | — | — |
| 1998 | 96° | 75° | 86° | — | — |
| 1997 | 100° | 76° | 88° | — | — |
| 1996 | 95° | 70° | 82° | — | — |
| 1995 | 98° | 72° | 85° | — | — |
| 1994 | 88° | 72° | 80° | 0.08" | — |
| 1993 | 101° | 78° | 89° | — | — |
| 1992coldest | 86° | 62° | 74° | — | — |
| 1991 | 95° | 69° | 82° | — | — |
| 1990 | 100° | 76° | 88° | — | — |
| 1989 | 95° | 76° | 85° | — | — |
| 1988 | 100° | 79° | 89° | — | — |
| 1987 | 98° | 78° | 88° | — | — |
| 1986 | 98° | 77° | 88° | — | — |
| 1985 | 105° | 74° | 89° | — | — |
| 1984 | 104° | 75° | 90° | — | — |
| 1983 | 92° | 75° | 83° | — | — |
| 1982 | 98° | 73° | 86° | — | — |
| 1981 | 90° | 64° | 77° | — | — |
| 1980 | 100° | 73° | 87° | — | — |
| 1979 | 92° | 69° | 80° | — | — |
| 1978 | 100° | 75° | 88° | — | — |
| 1977 | 84° | 75° | 80° | 0.18" | — |
| 1976 | 92° | 64° | 78° | — | — |
| 1975 | 96° | 75° | 86° | — | — |
| 1974 | 98° | 74° | 86° | — | — |
| 1973 | 96° | 71° | 84° | — | — |
| 1972 | 97° | 76° | 86° | — | — |
| 1971 | 91° | 73° | 82° | — | — |
55 years of data from WACO