Weather on March 21
Las Cruces, NM
55 Years of Data
Avg High
73°F
Avg Low
40°F
Warmest
2026
72°F avg
Coldest
2010
41°F avg
About This Date
March 21st in Las Cruces, NM typically brings pleasant spring weather, with average highs around 73°F and lows near 40°F — a 33°F daily swing. Over 56 years of records, the warmest March 21st was in 2026 (72°F average), while the coldest was 2010 (41°F) — a 31°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 March 21st in Las Cruces, NM? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 94° | 50° | 72° | — | — |
| 2025 | 67° | 32° | 49° | — | — |
| 2024 | 68° | 47° | 57° | — | — |
| 2023 | 71° | 34° | 52° | — | — |
| 2022 | 79° | 40° | 59° | — | — |
| 2021 | 82° | 44° | 63° | — | — |
| 2020 | 68° | 37° | 53° | — | — |
| 2019 | 72° | 43° | 57° | — | — |
| 2018 | 71° | 38° | 54° | — | — |
| 2017 | 87° | 51° | 69° | — | — |
| 2016 | 67° | 42° | 54° | — | — |
| 2015 | 71° | 44° | 58° | — | — |
| 2014 | 77° | 42° | 60° | — | — |
| 2013 | 71° | 44° | 58° | — | — |
| 2012 | 59° | 27° | 43° | — | — |
| 2011 | 80° | 44° | 62° | — | — |
| 2010coldest | 54° | 28° | 41° | — | — |
| 2009 | 79° | 50° | 64° | — | — |
| 2008 | 80° | 35° | 58° | — | — |
| 2007 | 82° | 44° | 63° | — | — |
| 2006 | 57° | 31° | 44° | — | — |
| 2005 | 68° | 41° | 55° | — | — |
| 2004 | 89° | 49° | 69° | — | — |
| 2003 | 65° | 43° | 54° | — | — |
| 2002 | 70° | 36° | 53° | — | — |
| 2001 | 76° | 40° | 58° | — | — |
| 2000 | 77° | 37° | 57° | — | — |
| 1999 | 79° | 34° | 56° | — | — |
| 1998 | 70° | 44° | 57° | — | — |
| 1997 | 82° | 41° | 62° | — | — |
| 1996 | 71° | 36° | 53° | — | — |
| 1995 | 80° | 45° | 62° | — | — |
| 1994 | 69° | 40° | 54° | — | — |
| 1993 | 76° | 44° | 60° | — | — |
| 1992 | 73° | 42° | 58° | — | — |
| 1991 | 68° | 42° | 55° | — | — |
| 1990 | 76° | 41° | 58° | — | — |
| 1989 | 78° | 30° | 54° | — | — |
| 1988 | 77° | 29° | 53° | — | — |
| 1987 | 70° | 38° | 54° | — | — |
| 1986 | 67° | 32° | 49° | — | — |
| 1985 | 65° | 37° | 51° | — | — |
| 1984 | 75° | 36° | 55° | — | — |
| 1983 | 61° | 34° | 47° | — | — |
| 1982 | 67° | 37° | 52° | — | — |
| 1981 | 70° | 37° | 53° | — | — |
| 1980 | 68° | 31° | 49° | — | — |
| 1979 | 75° | 41° | 58° | — | — |
| 1978 | 79° | 50° | 64° | — | — |
| 1977 | 71° | 32° | 52° | — | — |
| 1976 | 69° | 35° | 52° | — | — |
| 1975 | 78° | 48° | 63° | — | — |
| 1974 | 67° | 45° | 56° | — | — |
| 1973 | 72° | 42° | 57° | — | — |
| 1972 | 79° | 44° | 61° | — | — |
| 1971 | 77° | 34° | 55° | — | — |
56 years of data from STATE UNIV