Weather on May 21
League City, TX
55 Years of Data
Avg High
85°F
Avg Low
68°F
Warmest
2019
84°F avg
Coldest
1981
66°F avg
About This Date
May 21st in League City, TX typically brings warm spring weather, with average highs around 85°F and lows near 68°F. Over 55 years of records, the warmest May 21st was in 2019 (84°F average), while the coldest was 1981 (66°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 31% of May 21st dates historically, with the wettest May 21st recording 1.57" of rain. The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in League City, TX? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 75° | 78° | 0.03" | — |
| 2024 | 87° | 79° | 83° | — | — |
| 2023 | 80° | 69° | 75° | — | — |
| 2022 | 89° | 79° | 84° | — | — |
| 2021 | 81° | 72° | 76° | 0.18" | — |
| 2020 | 88° | 74° | 81° | — | — |
| 2019warmest | 88° | 80° | 84° | 0.03" | — |
| 2018 | 88° | 71° | 79° | 0.74" | — |
| 2017 | 86° | 73° | 80° | 0.05" | — |
| 2016 | 82° | 71° | 77° | 1.5" | — |
| 2015 | 86° | 72° | 79° | 0.2" | — |
| 2014 | 85° | 70° | 77° | — | — |
| 2013 | 85° | 76° | 80° | — | — |
| 2012 | 92° | 69° | 80° | — | — |
| 2011 | 87° | 76° | 81° | — | — |
| 2010 | 89° | 74° | 81° | — | — |
| 2009 | 86° | 66° | 76° | — | — |
| 2008 | 88° | 73° | 80° | — | — |
| 2007 | 81° | 63° | 72° | — | — |
| 2006 | 84° | 65° | 74° | — | — |
| 2005 | 94° | 69° | 81° | 0.13" | — |
| 2004 | 84° | 68° | 76° | — | — |
| 2003 | 88° | 70° | 79° | — | — |
| 2002 | 78° | 54° | 66° | — | — |
| 2001 | 88° | 66° | 77° | — | — |
| 2000 | 85° | 68° | 76° | 0.08" | — |
| 1999 | 87° | 67° | 77° | — | — |
| 1998 | 85° | 69° | 77° | — | — |
| 1997 | 84° | 68° | 76° | 0.03" | — |
| 1996 | 88° | 71° | 79° | — | — |
| 1995 | 81° | 59° | 70° | — | — |
| 1994 | 80° | 58° | 69° | — | — |
| 1993 | 80° | 57° | 69° | — | — |
| 1992 | 82° | 67° | 74° | — | — |
| 1991 | 83° | 70° | 76° | 0.81" | — |
| 1990 | 88° | 76° | 82° | — | — |
| 1989 | 87° | 74° | 80° | — | — |
| 1988 | 83° | 63° | 73° | 1.52" | — |
| 1987 | 84° | 71° | 78° | — | — |
| 1986 | 82° | 55° | 69° | — | — |
| 1985 | 85° | 68° | 76° | 0.05" | — |
| 1984 | 87° | 70° | 78° | — | — |
| 1983 | 78° | 65° | 71° | 1.57" | — |
| 1982 | 85° | 69° | 77° | — | — |
| 1981coldest | 78° | 54° | 66° | — | — |
| 1980 | 86° | 65° | 75° | 0.1" | — |
| 1979 | 83° | 67° | 75° | — | — |
| 1978 | 88° | 71° | 79° | — | — |
| 1977 | 82° | 71° | 77° | — | — |
| 1976 | 83° | 66° | 74° | — | — |
| 1975 | 87° | 66° | 77° | 1.52" | — |
| 1974 | 86° | — | — | — | — |
| 1973 | 76° | 67° | 71° | — | — |
| 1972 | 88° | 64° | 76° | — | — |
| 1971 | 82° | 66° | 74° | 0.2" | — |
55 years of data from HOUSTON NWSO