Weather on August 21
Oklahoma City, OK
55 Years of Data
Avg High
93°F
Avg Low
71°F
Warmest
2010
92°F avg
Coldest
2004
68°F avg
About This Date
August 21st in Oklahoma City, OK typically brings hot summer weather, with average highs around 93°F and lows near 71°F. Over 55 years of records, the warmest August 21st was in 2010 (92°F average), while the coldest was 2004 (68°F) — a 24°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 0.84" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for August 21st in Oklahoma City, OK? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 70° | 81° | — | — |
| 2024 | 89° | 74° | 81° | — | — |
| 2023 | 105° | 77° | 91° | — | — |
| 2022 | 77° | 71° | 74° | 0.43" | — |
| 2021 | 97° | 73° | 85° | 0.58" | — |
| 2020 | 93° | 69° | 81° | — | — |
| 2019 | 98° | 74° | 86° | — | — |
| 2018 | 86° | 63° | 74° | — | — |
| 2017 | 91° | 76° | 83° | — | — |
| 2016 | 87° | 62° | 75° | — | — |
| 2015 | 89° | 71° | 80° | — | — |
| 2014 | 99° | 78° | 88° | — | — |
| 2013 | 90° | 69° | 79° | — | — |
| 2012 | 89° | 66° | 78° | — | — |
| 2011 | 98° | 80° | 89° | — | — |
| 2010warmest | 102° | 82° | 92° | — | — |
| 2009 | 88° | 61° | 74° | — | — |
| 2008 | 85° | 69° | 77° | — | — |
| 2007 | 91° | 75° | 83° | — | — |
| 2006 | 89° | 73° | 81° | — | — |
| 2005 | 88° | 70° | 79° | 0.48" | — |
| 2004coldest | 81° | 55° | 68° | — | — |
| 2003 | 101° | 77° | 89° | — | — |
| 2002 | 96° | 79° | 87° | — | — |
| 2001 | 99° | 77° | 88° | — | — |
| 2000 | 99° | 73° | 86° | — | — |
| 1999 | 94° | 70° | 82° | 0.05" | — |
| 1998 | 97° | 78° | 87° | — | — |
| 1997 | 88° | 71° | 79° | — | — |
| 1996 | 92° | 69° | 80° | — | — |
| 1995 | 96° | 75° | 86° | — | — |
| 1994 | 86° | 63° | 74° | — | — |
| 1993 | 102° | 73° | 88° | — | — |
| 1992 | 87° | 64° | 76° | — | — |
| 1991 | 90° | 69° | 79° | 0.84" | — |
| 1990 | 98° | 72° | 85° | — | — |
| 1989 | 93° | 73° | 83° | — | — |
| 1988 | 99° | 75° | 87° | — | — |
| 1987 | 98° | 77° | 88° | — | — |
| 1986 | 91° | 77° | 84° | — | — |
| 1985 | 89° | 74° | 81° | — | — |
| 1984 | 103° | 72° | 87° | — | — |
| 1983 | 94° | 73° | 83° | — | — |
| 1982 | 95° | 71° | 83° | — | — |
| 1981 | 85° | 60° | 72° | — | — |
| 1980 | 97° | 74° | 85° | 0.38" | — |
| 1979 | 94° | 64° | 79° | 0.33" | — |
| 1978 | 93° | 68° | 81° | 0.28" | — |
| 1977 | 83° | 68° | 75° | 0.05" | — |
| 1976 | 90° | 65° | 77° | — | — |
| 1975 | 92° | 73° | 82° | — | — |
| 1974 | 95° | 74° | 84° | — | — |
| 1973 | 96° | 68° | 82° | — | — |
| 1972 | 99° | 75° | 87° | — | — |
| 1971 | 93° | 72° | 82° | — | — |
55 years of data from OKLAHOMA CITY PENN AVE