Weather on May 21
Killeen, TX
55 Years of Data
About This Date
May 21st in Killeen, TX typically brings warm spring weather, with average highs around 86°F and lows near 65°F. Over 54 years of records, the warmest May 21st was in 1996 (85°F average), while the coldest was 2015 (66°F) — a 19°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 2.51" 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 Killeen, TX? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 81° | 68° | 74° | 0.53" | — |
| 2025 | 91° | 62° | 77° | — | — |
| 2024 | 92° | 75° | 83° | — | — |
| 2023 | 76° | 62° | 69° | — | — |
| 2022 | 94° | 65° | 79° | — | — |
| 2021 | 85° | 69° | 77° | — | — |
| 2020 | 90° | 71° | 80° | — | — |
| 2019 | 87° | 61° | 74° | — | — |
| 2018 | 86° | 65° | 75° | — | — |
| 2017 | 74° | 59° | 66° | 1.47" | — |
| 2016 | 84° | 67° | 75° | — | — |
| 2015coldest | 72° | 61° | 66° | 0.13" | — |
| 2014 | 89° | 71° | 80° | — | — |
| 2013 | 86° | 65° | 75° | 1.57" | — |
| 2012 | 94° | 69° | 81° | 0.38" | — |
| 2011 | 91° | 65° | 78° | 0.13" | — |
| 2010 | 91° | 71° | 81° | — | — |
| 2009 | 85° | 73° | 79° | — | — |
| 2008 | 90° | 69° | 79° | — | — |
| 2007 | 79° | 68° | 73° | 0.2" | — |
| 2004 | 90° | 69° | 79° | — | — |
| 2003 | 77° | 57° | 67° | — | — |
| 2002 | 82° | 52° | 67° | — | — |
| 2001 | 92° | 65° | 78° | 0.03" | — |
| 2000 | 91° | 67° | 79° | — | — |
| 1999 | 85° | 66° | 75° | — | — |
| 1998 | 96° | 63° | 79° | — | — |
| 1997 | 73° | 63° | 68° | — | — |
| 1996warmest | 98° | 72° | 85° | — | — |
| 1995 | 81° | 60° | 70° | — | — |
| 1994 | 79° | 57° | 68° | — | — |
| 1993 | 85° | 61° | 73° | — | — |
| 1992 | 80° | 67° | 73° | 0.38" | — |
| 1991 | 84° | 65° | 74° | — | — |
| 1990 | 86° | 71° | 79° | 0.08" | — |
| 1989 | 87° | 60° | 74° | — | — |
| 1988 | 90° | 58° | 74° | 1.37" | — |
| 1987 | 88° | 65° | 76° | — | — |
| 1986 | 82° | 53° | 68° | — | — |
| 1985 | 87° | 54° | 70° | 1.83" | — |
| 1984 | 83° | 63° | 73° | — | — |
| 1983 | 89° | 57° | 73° | 0.1" | — |
| 1982 | 88° | 71° | 79° | — | — |
| 1981 | 89° | 61° | 75° | — | — |
| 1980 | 86° | 62° | 74° | — | — |
| 1979 | 83° | 68° | 75° | 0.25" | — |
| 1978 | 82° | 68° | 75° | 1.7" | — |
| 1977 | 82° | 66° | 74° | 2.51" | — |
| 1976 | 83° | 63° | 73° | 0.05" | — |
| 1975 | 89° | 74° | 81° | 0.18" | — |
| 1974 | 90° | 71° | 80° | — | — |
| 1973 | 93° | 71° | 82° | — | — |
| 1972 | 87° | 56° | 71° | — | — |
| 1971 | 83° | 67° | 75° | — | — |
Killeen, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Killeen, TX Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Killeen, 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 Killeen, TX
Killeen, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.