Weather on December 18
Rio Rancho, NM
55 Years of Data
Avg High
49°F
Avg Low
22°F
Warmest
2025
45°F avg
Coldest
1996
18°F avg
About This Date
December 18th in Rio Rancho, NM typically brings chilly winter weather, with average highs around 49°F and lows near 22°F — a 27°F daily swing. Over 44 years of records, the warmest December 18th was in 2025 (45°F average), while the coldest was 1996 (18°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 14% of December 18th dates historically, with the wettest December 18th recording 0.76" of rain. The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Rio Rancho, 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 | 62° | 29° | 45° | — | — |
| 2024 | 58° | 24° | 41° | — | — |
| 2023 | 58° | 29° | 43° | — | — |
| 2022 | 43° | 16° | 29° | — | — |
| 2021 | 50° | 22° | 36° | — | — |
| 2020 | 44° | 18° | 31° | — | — |
| 2019 | 43° | 18° | 30° | — | — |
| 2018 | 50° | 33° | 42° | — | — |
| 2017 | 55° | 27° | 41° | — | — |
| 2016 | 52° | 18° | 35° | 0.18" | — |
| 2015 | 41° | 18° | 29° | — | — |
| 2014 | 42° | 28° | 35° | 0.2" | — |
| 2013 | 61° | 27° | 44° | — | — |
| 2012 | 46° | 22° | 34° | — | — |
| 2011 | 50° | 27° | 38° | — | — |
| 2010 | 44° | 27° | 35° | — | — |
| 2009 | 57° | 25° | 41° | — | — |
| 2008 | 49° | 30° | 39° | — | — |
| 2007 | 47° | 18° | 32° | — | — |
| 2006 | 60° | 24° | 42° | — | — |
| 2005 | 46° | 23° | 35° | — | — |
| 2004 | 50° | 19° | 35° | — | — |
| 2003 | 50° | 15° | 33° | — | — |
| 2002 | 53° | 18° | 35° | — | — |
| 2001 | 52° | 19° | 35° | — | — |
| 2000 | 50° | 21° | 36° | — | — |
| 1999 | 54° | 14° | 34° | — | — |
| 1998 | 59° | 16° | 37° | — | — |
| 1997 | 51° | 19° | 35° | — | — |
| 1996coldest | 30° | 5° | 18° | — | — |
| 1995 | 39° | 31° | 35° | 0.03" | — |
| 1994 | 58° | 19° | 38° | — | — |
| 1993 | 48° | 15° | 32° | — | — |
| 1992 | 50° | 22° | 36° | — | — |
| 1991 | 39° | 28° | 34° | 0.66" | — |
| 1990 | 43° | 21° | 32° | — | — |
| 1989 | 54° | 25° | 39° | — | — |
| 1988 | 56° | 18° | 37° | — | — |
| 1987 | 39° | 32° | 36° | 0.76" | — |
| 1986 | 41° | 31° | 36° | 0.38" | — |
| 1985 | 51° | 13° | 32° | — | — |
| 1984 | 47° | 21° | 34° | — | — |
| 1983 | 43° | 25° | 34° | — | — |
| 1982 | 57° | 25° | 41° | — | — |
44 years of data from RIO RANCHO #2