Weather on May 21
Waco, TX
55 Years of Data
Avg High
85°F
Avg Low
65°F
Warmest
1998
83°F avg
Coldest
1981
64°F avg
About This Date
May 21st in Waco, TX typically brings warm spring weather, with average highs around 85°F and lows near 65°F. Over 55 years of records, the warmest May 21st was in 1998 (83°F average), while the coldest was 1981 (64°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 29% of May 21st dates historically, with the wettest May 21st recording 3.81" 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 Waco, TX? 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 | 90° | 53° | 71° | — | — |
| 2024 | 89° | 75° | 82° | — | — |
| 2023 | 76° | 60° | 68° | — | — |
| 2022 | 95° | 72° | 83° | — | — |
| 2021 | 82° | 64° | 73° | — | — |
| 2020 | 91° | 74° | 82° | — | — |
| 2019 | 88° | 67° | 77° | 0.05" | — |
| 2018 | 79° | 65° | 72° | 2.9" | — |
| 2017 | 80° | 66° | 73° | 3.81" | — |
| 2016 | 84° | 63° | 73° | — | — |
| 2015 | 86° | 60° | 73° | — | — |
| 2014 | 85° | 70° | 77° | — | — |
| 2013 | 88° | 73° | 80° | — | — |
| 2012 | 86° | 69° | 78° | — | — |
| 2011 | 85° | 67° | 76° | 0.84" | — |
| 2010 | 89° | 66° | 78° | 2.08" | — |
| 2009 | 80° | 55° | 68° | — | — |
| 2008 | 93° | 70° | 81° | — | — |
| 2007 | 82° | 56° | 69° | — | — |
| 2006 | 91° | 68° | 80° | — | — |
| 2005 | 99° | 67° | 83° | — | — |
| 2004 | 88° | 70° | 79° | — | — |
| 2003 | 69° | 61° | 65° | 0.08" | — |
| 2002 | 82° | 52° | 67° | — | — |
| 2001 | 89° | 52° | 70° | — | — |
| 2000 | 86° | 69° | 78° | — | — |
| 1999 | 88° | 70° | 79° | — | — |
| 1998warmest | 96° | 69° | 83° | — | — |
| 1997 | 70° | 62° | 66° | — | — |
| 1996 | 94° | 71° | 82° | — | — |
| 1995 | 83° | 60° | 71° | — | — |
| 1994 | 83° | 55° | 69° | — | — |
| 1993 | 84° | 63° | 73° | — | — |
| 1992 | 84° | 67° | 75° | 0.08" | — |
| 1991 | 70° | 67° | 68° | — | — |
| 1990 | 88° | 74° | 81° | 0.1" | — |
| 1989 | 90° | 66° | 78° | — | — |
| 1988 | 83° | 61° | 72° | 1.73" | — |
| 1987 | 87° | 68° | 78° | — | — |
| 1986 | 82° | 59° | 71° | — | — |
| 1985 | 84° | 61° | 72° | 2.51" | — |
| 1984 | 83° | 61° | 72° | — | — |
| 1983 | 73° | 64° | 69° | 0.97" | — |
| 1982 | 85° | 66° | 75° | — | — |
| 1981coldest | 76° | 53° | 64° | — | — |
| 1980 | 84° | 62° | 73° | — | — |
| 1979 | 80° | 70° | 75° | — | — |
| 1978 | 87° | 67° | 77° | 2.9" | — |
| 1977 | 86° | 63° | 74° | 0.48" | — |
| 1976 | 79° | 61° | 70° | 0.23" | — |
| 1975 | 81° | 65° | 73° | 0.2" | — |
| 1974 | 87° | 69° | 78° | 0.08" | — |
| 1973 | 91° | 70° | 80° | — | — |
| 1972 | 86° | 68° | 77° | — | — |
| 1971 | 82° | 62° | 72° | — | — |
55 years of data from WACO