Weather on August 21
Independence, MO
55 Years of Data
Avg High
86°F
Avg Low
65°F
Warmest
2003
89°F avg
Coldest
2004
62°F avg
About This Date
August 21st in Independence, MO typically brings warm summer weather, with average highs around 86°F and lows near 65°F. Over 54 years of records, the warmest August 21st was in 2003 (89°F average), while the coldest was 2004 (62°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 21st dates historically, with the wettest August 21st recording 5.38" 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 Independence, MO? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | — | — | — | — |
| 2024 | 83° | 64° | 73° | — | — |
| 2023 | 95° | 77° | 86° | — | — |
| 2022 | 84° | 61° | 72° | — | — |
| 2021 | 85° | 67° | 76° | 0.97" | — |
| 2020 | 82° | 58° | 70° | — | — |
| 2019 | 93° | 72° | 82° | — | — |
| 2018 | 73° | 66° | 70° | 0.05" | — |
| 2017 | 88° | 67° | 77° | 0.13" | — |
| 2016 | 74° | 58° | 66° | — | — |
| 2015 | 82° | 57° | 70° | — | — |
| 2014 | 94° | 75° | 84° | — | — |
| 2013 | 87° | 66° | 77° | — | — |
| 2012 | 86° | 55° | 71° | — | — |
| 2011 | 78° | 65° | 71° | 0.08" | — |
| 2010 | 94° | 68° | 81° | 5.38" | — |
| 2009 | 77° | 61° | 69° | — | — |
| 2008 | 78° | 65° | 71° | 0.33" | — |
| 2007 | 92° | 72° | 82° | — | — |
| 2006 | 85° | 67° | 76° | — | — |
| 2005 | 81° | 69° | 75° | — | — |
| 2004coldest | 69° | 56° | 62° | — | — |
| 2003warmest | 103° | 76° | 89° | — | — |
| 2002 | 89° | 68° | 79° | — | — |
| 2001 | 85° | 61° | 73° | — | — |
| 2000 | 89° | 69° | 79° | — | — |
| 1999 | 81° | 60° | 70° | — | — |
| 1998 | 92° | 71° | 81° | — | — |
| 1997 | 81° | 60° | 70° | — | — |
| 1996 | 87° | 67° | 77° | 0.97" | — |
| 1995 | 85° | 62° | 73° | — | — |
| 1994 | 78° | 57° | 68° | — | — |
| 1993 | 78° | 67° | 72° | 0.15" | — |
| 1992 | 81° | 56° | 68° | — | — |
| 1991 | 81° | 49° | 65° | — | — |
| 1990 | 79° | 66° | 72° | — | — |
| 1989 | 81° | 67° | 74° | 2.03" | — |
| 1988 | 92° | 58° | 75° | — | — |
| 1987 | 94° | 65° | 79° | — | — |
| 1986 | 83° | 60° | 71° | — | — |
| 1985 | 78° | 57° | 68° | — | — |
| 1984 | 90° | 63° | 76° | — | — |
| 1983 | 94° | 73° | 83° | — | — |
| 1982 | 85° | 65° | 75° | — | — |
| 1981 | 81° | 57° | 69° | — | — |
| 1980 | 89° | 68° | 79° | — | — |
| 1979 | 92° | 73° | 82° | 0.3" | — |
| 1978 | 84° | 60° | 72° | — | — |
| 1977 | 85° | 67° | 76° | — | — |
| 1976 | 89° | 67° | 78° | — | — |
| 1975 | 93° | 74° | 83° | — | — |
| 1974 | 91° | 71° | 81° | — | — |
| 1972 | 96° | 76° | 86° | 0.05" | — |
| 1971 | 92° | 74° | 83° | — | — |
54 years of data from INDEPENDENCE