Weather on August 21
Broken Arrow, OK
55 Years of Data
Avg High
92°F
Avg Low
68°F
Warmest
2023
89°F avg
Coldest
1977
71°F avg
About This Date
August 21st in Broken Arrow, OK typically brings hot summer weather, with average highs around 92°F and lows near 68°F. Over 55 years of records, the warmest August 21st was in 2023 (89°F average), while the coldest was 1977 (71°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 13% of August 21st dates historically, with the wettest August 21st recording 4.01" 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 Broken Arrow, OK? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 70° | 82° | — | — |
| 2024 | 87° | 68° | 78° | — | — |
| 2023warmest | 103° | 76° | 89° | — | — |
| 2022 | 86° | 74° | 80° | — | — |
| 2021 | 93° | 73° | 83° | 0.76" | — |
| 2020 | 89° | 63° | 76° | — | — |
| 2019 | 98° | 78° | 88° | 0.89" | — |
| 2018 | 85° | 65° | 75° | — | — |
| 2017 | 93° | 78° | 86° | — | — |
| 2016 | 86° | 59° | 73° | — | — |
| 2015 | 85° | 65° | 75° | 0.08" | — |
| 2014 | 97° | 78° | 87° | — | — |
| 2013 | 93° | 67° | 80° | — | — |
| 2012 | 93° | 61° | 77° | — | — |
| 2011 | 96° | 78° | 87° | — | — |
| 2010 | 99° | 77° | 88° | — | — |
| 2009 | 88° | 61° | 74° | — | — |
| 2008 | 85° | 71° | 78° | — | — |
| 2007 | 94° | 79° | 86° | — | — |
| 2006 | 85° | 71° | 78° | 4.01" | — |
| 2005 | 93° | 71° | 82° | 0.25" | — |
| 2004 | 82° | 60° | 71° | — | — |
| 2003 | 100° | 73° | 87° | — | — |
| 2002 | 96° | 76° | 86° | — | — |
| 2001 | 99° | 74° | 86° | — | — |
| 2000 | 100° | 68° | 84° | — | — |
| 1999 | 92° | 66° | 79° | — | — |
| 1998 | 99° | 72° | 85° | — | — |
| 1997 | 90° | 66° | 78° | — | — |
| 1996 | 93° | 68° | 81° | — | — |
| 1995 | 96° | 69° | 83° | — | — |
| 1994 | 82° | 59° | 71° | — | — |
| 1993 | 104° | 69° | 87° | — | — |
| 1992 | 86° | 60° | 73° | — | — |
| 1991 | 86° | 58° | 72° | — | — |
| 1990 | 98° | 72° | 85° | — | — |
| 1989 | 92° | 68° | 80° | — | — |
| 1988 | 94° | 72° | 83° | — | — |
| 1987 | 97° | 71° | 84° | — | — |
| 1986 | 93° | 71° | 82° | — | — |
| 1985 | 92° | 70° | 81° | — | — |
| 1984 | 93° | 72° | 82° | — | — |
| 1983 | 94° | 70° | 82° | — | — |
| 1982 | 85° | 65° | 75° | — | — |
| 1981 | 85° | 59° | 72° | — | — |
| 1980 | 100° | 69° | 85° | 0.25" | — |
| 1979 | 94° | 68° | 81° | 3.05" | — |
| 1978 | 92° | 60° | 76° | — | — |
| 1977coldest | 79° | 63° | 71° | — | — |
| 1976 | 90° | 58° | 74° | — | — |
| 1975 | 92° | 71° | 81° | — | — |
| 1974 | 92° | 66° | 79° | — | — |
| 1973 | 92° | 63° | 77° | — | — |
| 1972 | 100° | 69° | 85° | — | — |
| 1971 | 95° | 67° | 81° | — | — |
55 years of data from BIXBY