Weather on September 21
Rio Rancho, NM
55 Years of Data
Avg High
83°F
Avg Low
51°F
Warmest
2014
76°F avg
Coldest
1997
58°F avg
About This Date
September 21st in Rio Rancho, NM typically brings warm fall weather, with average highs around 83°F and lows near 51°F — a 32°F daily swing. Over 42 years of records, the warmest September 21st was in 2014 (76°F average), while the coldest was 1997 (58°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 21st dates historically, with the wettest September 21st recording 3.84" of rain. The last decade has been 6.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.9°F warmer on this date compared to 20-30 years ago.
Planning for September 21st in Rio Rancho, NM? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
3.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 53° | 70° | — | — |
| 2024 | 90° | 59° | 74° | — | — |
| 2023 | 82° | 52° | 67° | — | — |
| 2022 | 88° | 64° | 76° | 0.05" | — |
| 2021 | 89° | 52° | 70° | — | — |
| 2020 | 88° | 54° | 71° | — | — |
| 2019 | 88° | 57° | 72° | — | — |
| 2018 | 82° | 54° | 68° | 0.13" | — |
| 2017 | 88° | 55° | 71° | — | — |
| 2016 | 87° | 56° | 71° | — | — |
| 2015 | 89° | 57° | 73° | — | — |
| 2014warmest | 92° | 61° | 76° | — | — |
| 2013 | 87° | 58° | 72° | — | — |
| 2012 | 89° | 51° | 70° | — | — |
| 2011 | 88° | 55° | 71° | — | — |
| 2010 | 87° | 57° | 72° | 0.18" | — |
| 2009 | 81° | 56° | 68° | — | — |
| 2008 | 86° | 58° | 72° | — | — |
| 2007 | 74° | 53° | 63° | 0.91" | — |
| 2006 | 80° | 40° | 60° | 0.43" | — |
| 2005 | 92° | 47° | 69° | — | — |
| 2004 | 78° | 49° | 63° | — | — |
| 2003 | 87° | 39° | 63° | — | — |
| 2002 | 80° | 42° | 61° | — | — |
| 2001 | 92° | 55° | 73° | — | — |
| 2000 | 85° | 52° | 68° | 0.23" | — |
| 1999 | 78° | 47° | 62° | — | — |
| 1998 | 85° | 46° | 65° | — | — |
| 1997coldest | 61° | 56° | 58° | 3.84" | — |
| 1996 | 80° | 38° | 59° | — | — |
| 1995 | 70° | 51° | 60° | — | — |
| 1994 | 78° | 46° | 62° | 0.05" | — |
| 1993 | 87° | 42° | 65° | — | — |
| 1992 | 80° | 42° | 61° | — | — |
| 1991 | 76° | 45° | 60° | — | — |
| 1990 | 81° | 51° | 66° | 0.18" | — |
| 1989 | 82° | 39° | 61° | — | — |
| 1988 | 64° | 56° | 60° | 1.55" | — |
| 1987 | 82° | 41° | 62° | — | — |
| 1986 | 83° | 46° | 64° | — | — |
| 1984 | 87° | 53° | 70° | — | — |
| 1983 | 80° | 40° | 60° | — | — |
42 years of data from RIO RANCHO #2