Weather on May 21
Houston, TX
55 Years of Data
About This Date
May 21st in Houston, TX typically brings warm spring weather, with average highs around 86°F and lows near 71°F. Over 56 years of records, the warmest May 21st was in 2022 (87°F average), while the coldest was 1983 (69°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 21% of May 21st dates historically, with the wettest May 21st recording 4.98" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Houston, TX? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 81° | 72° | 76° | 0.23" | — |
| 2025 | 84° | 77° | 81° | — | — |
| 2024 | 91° | 80° | 86° | — | — |
| 2023 | 81° | 71° | 76° | — | — |
| 2022warmest | 93° | 80° | 87° | — | — |
| 2021 | 84° | 72° | 78° | 0.18" | — |
| 2020 | 90° | 76° | 83° | — | — |
| 2019 | 90° | 78° | 84° | — | — |
| 2018 | 87° | 71° | 79° | 4.98" | — |
| 2017 | 88° | 74° | 81° | 0.51" | — |
| 2016 | 86° | 71° | 79° | 3" | — |
| 2015 | 84° | 72° | 78° | — | — |
| 2014 | 86° | 69° | 78° | — | — |
| 2013 | 89° | 77° | 83° | — | — |
| 2012 | 89° | 73° | 81° | — | — |
| 2011 | 91° | 76° | 83° | — | — |
| 2010 | 89° | 74° | 81° | — | — |
| 2009 | 83° | 60° | 71° | — | — |
| 2008 | 98° | 73° | 86° | — | — |
| 2007 | 84° | 64° | 74° | — | — |
| 2006 | 89° | 71° | 80° | — | — |
| 2005 | 92° | 74° | 83° | — | — |
| 2004 | 87° | 74° | 80° | — | — |
| 2003 | 90° | 71° | 80° | — | — |
| 2002 | 80° | 58° | 69° | — | — |
| 2001 | 90° | 62° | 76° | — | — |
| 2000 | 90° | 72° | 81° | — | — |
| 1999 | 88° | 72° | 80° | — | — |
| 1998 | 90° | 73° | 81° | — | — |
| 1997 | 88° | 69° | 78° | — | — |
| 1996 | 94° | 72° | 83° | — | — |
| 1995 | 83° | 66° | 74° | — | — |
| 1994 | 84° | 65° | 74° | — | — |
| 1993 | 83° | 63° | 73° | — | — |
| 1992 | 84° | 73° | 79° | — | — |
| 1991 | 84° | 73° | 79° | — | — |
| 1990 | 94° | 75° | 84° | — | — |
| 1989 | 85° | 73° | 79° | — | — |
| 1988 | 79° | 62° | 70° | 1.96" | — |
| 1987 | 84° | 70° | 77° | — | — |
| 1986 | 80° | 64° | 72° | — | — |
| 1985 | 84° | 61° | 72° | 1.3" | — |
| 1984 | 85° | 67° | 76° | 0.05" | — |
| 1983coldest | 73° | 64° | 69° | 2.08" | — |
| 1982 | 84° | 72° | 78° | — | — |
| 1981 | 76° | 64° | 70° | — | — |
| 1980 | 87° | 74° | 80° | — | — |
| 1979 | 84° | 74° | 79° | 0.03" | — |
| 1978 | 88° | 74° | 81° | — | — |
| 1977 | 80° | 65° | 72° | 1.73" | — |
| 1976 | 85° | 68° | 76° | — | — |
| 1975 | 84° | 76° | 80° | — | — |
| 1974 | 82° | 71° | 77° | 0.1" | — |
| 1973 | 88° | 72° | 80° | — | — |
| 1972 | 90° | 69° | 79° | — | — |
| 1971 | 84° | 69° | 77° | — | — |
Houston, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Houston, TX Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Houston, TX Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Houston, TX
Houston, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.