Weather on December 20
Las Cruces, NM
55 Years of Data
About This Date
December 20th 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 20th was in 2025 (55°F average), while the coldest was 1973 (30°F) — a 25°F range across recorded history. Precipitation has occurred on 11% of recorded December 20th dates, with snow falling 2% of the time (heaviest snowfall: 1.3"). The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Las Cruces, NM? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 76° | 35° | 55° | — | — |
| 2024 | 67° | 31° | 49° | — | — |
| 2023 | 60° | 38° | 49° | — | — |
| 2022 | 57° | 29° | 43° | — | — |
| 2021 | 54° | 27° | 40° | — | — |
| 2020 | 57° | 28° | 43° | — | — |
| 2019 | 50° | 26° | 38° | — | — |
| 2018 | 66° | 32° | 49° | — | — |
| 2017 | 59° | 30° | 45° | — | — |
| 2016 | 56° | 31° | 43° | — | — |
| 2015 | 68° | 28° | 48° | — | — |
| 2014 | 54° | 30° | 42° | — | — |
| 2013 | 69° | 31° | 50° | — | — |
| 2012 | 53° | 23° | 38° | — | — |
| 2011 | 45° | 35° | 40° | 0.13" | 1.3" |
| 2010 | 69° | 39° | 54° | — | — |
| 2009 | 59° | 31° | 45° | — | — |
| 2008 | 60° | 29° | 44° | — | — |
| 2007 | 62° | 27° | 44° | — | — |
| 2006 | 53° | 31° | 42° | 0.3" | — |
| 2005 | 67° | 31° | 49° | — | — |
| 2004 | 59° | 24° | 42° | — | — |
| 2003 | 60° | 25° | 42° | — | — |
| 2002 | 51° | 21° | 36° | — | — |
| 2001 | 61° | 25° | 43° | — | — |
| 2000 | 52° | 20° | 36° | — | — |
| 1999 | 56° | 27° | 41° | — | — |
| 1998 | 56° | 32° | 44° | — | — |
| 1997 | 66° | 28° | 47° | 0.79" | — |
| 1996 | 46° | 16° | 31° | — | — |
| 1995 | 50° | 30° | 40° | — | — |
| 1994 | 67° | 30° | 48° | — | — |
| 1993 | 58° | 35° | 46° | — | — |
| 1992 | 56° | 31° | 43° | — | — |
| 1991 | 51° | 40° | 45° | 0.61" | — |
| 1990 | 61° | 27° | 44° | — | — |
| 1989 | 60° | 27° | 43° | — | — |
| 1988 | 54° | 26° | 40° | — | — |
| 1987 | 54° | 36° | 45° | — | — |
| 1986 | 52° | 31° | 41° | — | — |
| 1985 | 62° | 23° | 43° | — | — |
| 1984 | 50° | 37° | 44° | 1.04" | — |
| 1983 | 50° | 22° | 36° | — | — |
| 1982 | 64° | 26° | 45° | — | — |
| 1981 | 62° | 24° | 43° | — | — |
| 1980 | 54° | 22° | 38° | — | — |
| 1979 | 64° | 28° | 46° | — | — |
| 1978 | 58° | 37° | 47° | 0.79" | — |
| 1977 | 64° | 25° | 44° | — | — |
| 1976 | 54° | 30° | 42° | — | — |
| 1975 | 56° | 27° | 41° | — | — |
| 1974 | 58° | 20° | 39° | — | — |
| 1973coldest | 45° | 15° | 30° | — | — |
| 1972 | 61° | 35° | 48° | — | — |
| 1971 | 60° | 24° | 42° | — | — |
Las Cruces, NM Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Las Cruces, NM Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Las Cruces, NM 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 Las Cruces, NM
Las Cruces, NM has no months that meet our "pleasant" threshold — every season has tradeoffs.