Weather on September 21
Las Cruces, NM
55 Years of Data
About This Date
September 21st in Las Cruces, NM typically brings warm fall weather, with average highs around 88°F and lows near 59°F — a 29°F daily swing. Over 56 years of records, the warmest September 21st was in 2024 (82°F average), while the coldest was 1991 (57°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 21% of September 21st dates historically. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for September 21st in Las Cruces, NM? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 92° | 62° | 77° | — | — |
| 2025 | 87° | 63° | 75° | — | — |
| 2024warmest | 95° | 68° | 82° | 0.02" | — |
| 2023 | 92° | 56° | 74° | 0.2" | — |
| 2022 | 90° | 69° | 79° | — | — |
| 2021 | 94° | 64° | 79° | — | — |
| 2020 | 87° | 55° | 71° | — | — |
| 2019 | 91° | 66° | 79° | — | — |
| 2018 | 73° | 61° | 67° | 0.24" | — |
| 2017 | 91° | 62° | 77° | — | — |
| 2016 | 96° | 58° | 77° | — | — |
| 2015 | 85° | 63° | 74° | — | — |
| 2014 | 88° | 67° | 77° | — | — |
| 2013 | 83° | 61° | 72° | — | — |
| 2012 | 92° | 54° | 73° | — | — |
| 2011 | 92° | 59° | 75° | — | — |
| 2010 | 88° | 64° | 76° | 0.25" | — |
| 2009 | 85° | 57° | 71° | — | — |
| 2008 | 87° | 59° | 73° | — | — |
| 2007 | 82° | 59° | 71° | — | — |
| 2006 | 84° | 49° | 66° | 0.08" | — |
| 2005 | 96° | 64° | 80° | — | — |
| 2004 | 83° | 58° | 70° | — | — |
| 2003 | 89° | 62° | 76° | — | — |
| 2002 | 89° | 54° | 71° | — | — |
| 2001 | 93° | 58° | 75° | — | — |
| 2000 | 92° | 60° | 76° | — | — |
| 1999 | 89° | 63° | 76° | — | — |
| 1998 | 90° | 64° | 77° | — | — |
| 1997 | 90° | 64° | 77° | 0.05" | — |
| 1996 | 85° | 55° | 70° | — | — |
| 1995 | 86° | 61° | 73° | — | — |
| 1994 | 91° | 59° | 75° | — | — |
| 1993 | 91° | 62° | 77° | — | — |
| 1992 | 87° | 56° | 71° | 0.08" | — |
| 1991coldest | 66° | 49° | 57° | 0.01" | — |
| 1990 | 85° | 65° | 75° | 0.04" | — |
| 1989 | 91° | 64° | 78° | — | — |
| 1988 | 79° | 60° | 69° | 0.05" | — |
| 1987 | 87° | 55° | 71° | — | — |
| 1986 | 93° | 60° | 77° | — | — |
| 1985 | 81° | 53° | 67° | — | — |
| 1984 | 86° | 55° | 71° | — | — |
| 1983 | 85° | 52° | 68° | — | — |
| 1982 | 84° | 63° | 73° | 0.09" | — |
| 1981 | 91° | 51° | 71° | — | — |
| 1980 | 94° | 51° | 72° | — | — |
| 1979 | 86° | 50° | 68° | — | — |
| 1978 | 86° | 57° | 72° | — | — |
| 1977 | 91° | 54° | 72° | — | — |
| 1976 | 90° | 56° | 73° | 0.05" | — |
| 1975 | 90° | 57° | 73° | — | — |
| 1974 | 82° | 56° | 69° | — | — |
| 1973 | 92° | 66° | 79° | — | — |
| 1972 | 83° | 50° | 66° | — | — |
| 1971 | 83° | 46° | 64° | — | — |
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
Most pleasant months in Las Cruces, NM: March, April, October, November.