Weather on March 21
Carrollton, TX
55 Years of Data
Avg High
71°F
Avg Low
49°F
Warmest
2026
77°F avg
Coldest
1989
39°F avg
About This Date
March 21st in Carrollton, TX typically brings pleasant spring weather, with average highs around 71°F and lows near 49°F. Over 56 years of records, the warmest March 21st was in 2026 (77°F average), while the coldest was 1989 (39°F) — a 38°F range across recorded history. Precipitation has occurred on 16% of recorded March 21st dates, with snow falling 2% of the time (heaviest snowfall: 1.4"). The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Carrollton, TX? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 91° | 63° | 77° | — | — |
| 2025 | 78° | 48° | 63° | — | — |
| 2024 | 66° | 55° | 61° | — | — |
| 2023 | 66° | 49° | 57° | 0.03" | — |
| 2022 | 73° | 56° | 64° | 3.71" | — |
| 2021 | 69° | 46° | 58° | — | — |
| 2020 | 58° | 42° | 50° | 0.43" | — |
| 2019 | 79° | 47° | 63° | — | — |
| 2018 | 73° | 45° | 59° | — | — |
| 2017 | 86° | 63° | 74° | — | — |
| 2016 | 67° | 35° | 51° | — | — |
| 2015 | 63° | 53° | 58° | 0.15" | — |
| 2014 | 80° | 53° | 67° | — | — |
| 2013 | 72° | 54° | 63° | — | — |
| 2012 | 66° | 52° | 59° | — | — |
| 2011 | 84° | 65° | 74° | — | — |
| 2010 | 48° | 32° | 40° | 0.03" | 1.4" |
| 2009 | 78° | 56° | 67° | — | — |
| 2008 | 75° | 50° | 63° | — | — |
| 2007 | 77° | 66° | 72° | — | — |
| 2006 | 57° | 39° | 48° | — | — |
| 2005 | 80° | 60° | 70° | 0.18" | — |
| 2004 | 71° | 52° | 61° | — | — |
| 2003 | 63° | 47° | 55° | — | — |
| 2002 | 65° | 37° | 51° | — | — |
| 2001 | 74° | 42° | 58° | — | — |
| 2000 | 68° | 55° | 62° | 2.62" | — |
| 1999 | 71° | 41° | 56° | — | — |
| 1998 | 61° | 35° | 48° | — | — |
| 1997 | 90° | 52° | 71° | — | — |
| 1996 | 70° | 33° | 51° | — | — |
| 1995 | 81° | 56° | 68° | — | — |
| 1994 | 73° | 51° | 62° | — | — |
| 1993 | 67° | 49° | 58° | — | — |
| 1992 | 65° | 55° | 60° | — | — |
| 1991 | 84° | 66° | 75° | — | — |
| 1990 | 74° | 50° | 62° | — | — |
| 1989coldest | 47° | 32° | 39° | 0.97" | — |
| 1988 | 80° | 51° | 66° | — | — |
| 1987 | 78° | 59° | 69° | — | — |
| 1986 | 60° | 36° | 48° | — | — |
| 1985 | 59° | 50° | 55° | — | — |
| 1984 | 75° | 43° | 59° | — | — |
| 1983 | 57° | 33° | 45° | — | — |
| 1982 | 68° | 47° | 57° | 3" | — |
| 1981 | 77° | 51° | 64° | — | — |
| 1980 | 71° | 37° | 54° | — | — |
| 1979 | 75° | 61° | 68° | — | — |
| 1978 | 79° | 58° | 68° | — | — |
| 1977 | 66° | 48° | 57° | — | — |
| 1976 | 71° | 41° | 56° | — | — |
| 1975 | 82° | 62° | 72° | — | — |
| 1974 | 51° | 32° | 42° | — | — |
| 1973 | 59° | 43° | 51° | — | — |
| 1972 | 78° | 58° | 68° | — | — |
| 1971 | 82° | 52° | 67° | — | — |
56 years of data from ADDISON AIRPORT