Weather on March 21
Killeen, TX
55 Years of Data
Avg High
73°F
Avg Low
46°F
Warmest
2026
75°F avg
Coldest
1996
43°F avg
About This Date
March 21st in Killeen, TX typically brings pleasant spring weather, with average highs around 73°F and lows near 46°F — a 27°F daily swing. Over 55 years of records, the warmest March 21st was in 2026 (75°F average), while the coldest was 1996 (43°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 20% of March 21st dates historically, with the wettest March 21st recording 2.06" of rain. The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Killeen, TX? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 94° | 57° | 75° | — | — |
| 2025 | 80° | 43° | 61° | — | — |
| 2024 | 62° | 55° | 59° | 1.04" | — |
| 2023 | 71° | 49° | 60° | 0.08" | — |
| 2022 | 81° | 57° | 69° | 0.23" | — |
| 2021 | 72° | 48° | 60° | — | — |
| 2020 | 54° | 43° | 48° | 1.24" | — |
| 2019 | 77° | 39° | 58° | — | — |
| 2018 | 74° | 38° | 56° | — | — |
| 2017 | 84° | 58° | 71° | — | — |
| 2016 | 67° | 33° | 50° | — | — |
| 2015 | 59° | 54° | 56° | 1.6" | — |
| 2014 | 83° | 56° | 69° | — | — |
| 2013 | 78° | 53° | 66° | — | — |
| 2012 | 66° | 45° | 55° | — | — |
| 2011 | 77° | 63° | 70° | — | — |
| 2010 | 59° | 36° | 47° | — | — |
| 2009 | 79° | 54° | 66° | — | — |
| 2008 | 77° | 47° | 62° | — | — |
| 2007 | 81° | 66° | 73° | 0.03" | — |
| 2006 | 76° | 38° | 57° | — | — |
| 2005 | 79° | 46° | 62° | 1.57" | — |
| 2003 | 60° | 44° | 52° | — | — |
| 2002 | 69° | 42° | 56° | — | — |
| 2001 | 64° | 41° | 53° | — | — |
| 2000 | 76° | 49° | 62° | — | — |
| 1999 | 65° | 40° | 52° | — | — |
| 1998 | 65° | 36° | 50° | — | — |
| 1997 | 78° | 45° | 61° | — | — |
| 1996coldest | 59° | 26° | 43° | — | — |
| 1995 | 80° | 53° | 67° | — | — |
| 1994 | 83° | 56° | 69° | — | — |
| 1993 | 57° | 52° | 54° | — | — |
| 1992 | 65° | 42° | 53° | — | — |
| 1991 | 72° | 60° | 66° | — | — |
| 1990 | 65° | 38° | 51° | — | — |
| 1989 | 85° | 39° | 62° | 0.89" | — |
| 1988 | 79° | 27° | 53° | — | — |
| 1987 | 79° | 56° | 67° | — | — |
| 1986 | 62° | 34° | 48° | — | — |
| 1985 | 69° | 50° | 60° | — | — |
| 1984 | 78° | 46° | 62° | — | — |
| 1983 | 61° | 31° | 46° | — | — |
| 1982 | 76° | 50° | 63° | — | — |
| 1981 | 71° | 47° | 59° | — | — |
| 1980 | 80° | 39° | 60° | — | — |
| 1979 | 73° | 58° | 65° | 2.06" | — |
| 1978 | 83° | 55° | 69° | — | — |
| 1977 | 70° | 51° | 60° | — | — |
| 1976 | 80° | 35° | 58° | — | — |
| 1975 | 82° | 61° | 71° | — | — |
| 1974 | 67° | 34° | 50° | 0.05" | — |
| 1973 | 69° | 39° | 54° | — | — |
| 1972 | 82° | 57° | 70° | 0.56" | — |
| 1971 | 84° | 46° | 65° | — | — |
55 years of data from FT HOOD