Weather on May 21
Dallas, TX
55 Years of Data
Avg High
85°F
Avg Low
66°F
Warmest
1996
86°F avg
Coldest
2015
62°F avg
About This Date
May 21st in Dallas, TX typically brings warm spring weather, with average highs around 85°F and lows near 66°F. Over 55 years of records, the warmest May 21st was in 1996 (86°F average), while the coldest was 2015 (62°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 21st dates historically, with the wettest May 21st recording 3.63" 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 May 21st in Dallas, TX? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 60° | 75° | — | — |
| 2024 | 88° | 76° | 82° | 0.1" | — |
| 2023 | 77° | 62° | 70° | — | — |
| 2022 | 93° | 63° | 78° | 0.05" | — |
| 2021 | 86° | 71° | 79° | — | — |
| 2020 | 88° | 71° | 79° | — | — |
| 2019 | 85° | 67° | 76° | 0.28" | — |
| 2018 | 89° | 68° | 79° | — | — |
| 2017 | 81° | 62° | 71° | 0.23" | — |
| 2016 | 85° | 65° | 75° | — | — |
| 2015coldest | 68° | 56° | 62° | 1.42" | — |
| 2014 | 87° | 69° | 78° | — | — |
| 2013 | 84° | 62° | 73° | 2.06" | — |
| 2012 | 90° | 68° | 79° | — | — |
| 2011 | 86° | 65° | 75° | — | — |
| 2010 | 89° | 69° | 79° | — | — |
| 2009 | 86° | 60° | 73° | — | — |
| 2008 | 90° | 70° | 80° | — | — |
| 2007 | 78° | 66° | 72° | 0.81" | — |
| 2006 | 91° | 69° | 80° | — | — |
| 2005 | 99° | 74° | 86° | — | — |
| 2004 | 89° | 72° | 80° | — | — |
| 2003 | 69° | 63° | 66° | 0.08" | — |
| 2002 | 80° | 60° | 70° | — | — |
| 2001 | 81° | 58° | 69° | — | — |
| 2000 | 88° | 64° | 76° | — | — |
| 1999 | 87° | 71° | 79° | — | — |
| 1998 | 95° | 72° | 83° | — | — |
| 1997 | 68° | 60° | 64° | 0.38" | — |
| 1996warmest | 97° | 75° | 86° | — | — |
| 1995 | 85° | 64° | 74° | — | — |
| 1994 | 84° | 60° | 72° | — | — |
| 1993 | 82° | 65° | 73° | — | — |
| 1992 | 84° | 67° | 75° | 0.94" | — |
| 1991 | 85° | 71° | 78° | 0.05" | — |
| 1990 | 90° | 70° | 80° | — | — |
| 1989 | 91° | 73° | 82° | — | — |
| 1988 | 81° | 63° | 72° | — | — |
| 1987 | 90° | 71° | 80° | — | — |
| 1986 | 85° | 63° | 74° | — | — |
| 1985 | 78° | 62° | 70° | 2.41" | — |
| 1984 | 90° | 65° | 77° | — | — |
| 1983 | 81° | 60° | 70° | 2.84" | — |
| 1982 | 88° | 67° | 77° | 0.2" | — |
| 1981 | 82° | 60° | 71° | — | — |
| 1980 | 80° | 61° | 70° | — | — |
| 1979 | 77° | 64° | 71° | 0.74" | — |
| 1978 | 81° | 68° | 74° | 3.63" | — |
| 1977 | 90° | 63° | 76° | 0.84" | — |
| 1976 | 84° | 65° | 74° | — | — |
| 1975 | 90° | 68° | 79° | — | — |
| 1974 | 83° | 69° | 76° | 0.18" | — |
| 1973 | 94° | 71° | 82° | — | — |
| 1972 | 90° | 69° | 79° | — | — |
| 1971 | 87° | 66° | 77° | — | — |
55 years of data from DALLAS FAA AP