Weather on December 21
Las Cruces, NM
55 Years of Data
Avg High
58°F
Avg Low
29°F
Warmest
2025
58°F avg
Coldest
1977
26°F avg
About This Date
December 21st in Las Cruces, NM typically brings cool winter weather, with average highs around 58°F and lows near 29°F — a 29°F daily swing. Over 55 years of records, the warmest December 21st was in 2025 (58°F average), while the coldest was 1977 (26°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 21st dates historically. The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Las Cruces, NM? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 77° | 39° | 58° | — | — |
| 2024 | 67° | 30° | 48° | — | — |
| 2023 | 56° | 36° | 46° | 0.33" | — |
| 2022 | 56° | 30° | 43° | — | — |
| 2021 | 62° | 29° | 45° | — | — |
| 2020 | 61° | 26° | 43° | — | — |
| 2019 | 56° | 24° | 40° | — | — |
| 2018 | 62° | 28° | 45° | — | — |
| 2017 | 64° | 30° | 47° | — | — |
| 2016 | 61° | 33° | 47° | — | — |
| 2015 | 64° | 30° | 47° | — | — |
| 2014 | 55° | 31° | 43° | — | — |
| 2013 | 60° | 34° | 47° | 0.2" | — |
| 2012 | 47° | 23° | 35° | — | — |
| 2011 | 46° | 27° | 36° | — | — |
| 2010 | 68° | 37° | 53° | — | — |
| 2009 | 60° | 32° | 46° | — | — |
| 2008 | 63° | 28° | 45° | — | — |
| 2007 | 62° | 29° | 45° | — | — |
| 2006 | 45° | 28° | 36° | — | — |
| 2005 | 65° | 30° | 47° | — | — |
| 2004 | 62° | 24° | 43° | — | — |
| 2003 | 61° | 26° | 43° | — | — |
| 2002 | 52° | 21° | 36° | — | — |
| 2001 | 63° | 28° | 45° | — | — |
| 2000 | 65° | 28° | 46° | — | — |
| 1999 | 55° | 23° | 39° | — | — |
| 1998 | 58° | 34° | 46° | — | — |
| 1997 | 38° | 34° | 36° | 0.15" | — |
| 1996 | 52° | 22° | 37° | — | — |
| 1995 | 50° | 32° | 41° | — | — |
| 1994 | 64° | 33° | 49° | — | — |
| 1993 | 56° | 37° | 46° | — | — |
| 1992 | 49° | 28° | 38° | — | — |
| 1991 | 54° | 41° | 47° | 0.13" | — |
| 1990 | 63° | 35° | 49° | — | — |
| 1989 | 61° | 22° | 41° | — | — |
| 1988 | 55° | 26° | 41° | — | — |
| 1987 | 54° | 29° | 41° | — | — |
| 1986 | 57° | 31° | 44° | 0.08" | — |
| 1985 | 62° | 25° | 43° | — | — |
| 1984 | 63° | 32° | 47° | — | — |
| 1983 | 66° | 33° | 50° | — | — |
| 1982 | 65° | 28° | 46° | — | — |
| 1981 | 73° | 36° | 54° | — | — |
| 1980 | 44° | 21° | 33° | — | — |
| 1979 | 63° | 29° | 46° | — | — |
| 1978 | 51° | 26° | 39° | — | — |
| 1977coldest | 42° | 11° | 26° | — | — |
| 1976 | 52° | 31° | 41° | — | — |
| 1975 | 60° | 38° | 49° | 0.03" | — |
| 1974 | 59° | 21° | 40° | — | — |
| 1973 | 56° | 15° | 35° | — | — |
| 1972 | 59° | 32° | 46° | — | — |
| 1971 | 59° | 27° | 43° | — | — |
55 years of data from STATE UNIV