Weather on December 18
Richardson, TX
55 Years of Data
Avg High
59°F
Avg Low
37°F
Warmest
2006
65°F avg
Coldest
2016
22°F avg
About This Date
December 18th in Richardson, TX typically brings cool winter weather, with average highs around 59°F and lows near 37°F. Over 55 years of records, the warmest December 18th was in 2006 (65°F average), while the coldest was 2016 (22°F) — a 43°F range across recorded history. Rain or other precipitation has occurred on about 25% of December 18th dates historically, with the wettest December 18th recording 2.16" of rain. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
Planning for December 18th in Richardson, TX? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 42° | 55° | 0.03" | — |
| 2024 | 69° | 44° | 57° | 0.28" | — |
| 2023 | 61° | 42° | 51° | — | — |
| 2022 | 54° | 28° | 41° | — | — |
| 2021 | 70° | 38° | 54° | 0.51" | — |
| 2020 | 60° | 27° | 43° | — | — |
| 2019 | 58° | 27° | 42° | — | — |
| 2018 | 61° | 33° | 47° | — | — |
| 2017 | 52° | 45° | 48° | 0.03" | — |
| 2016coldest | 28° | 15° | 22° | — | — |
| 2015 | 51° | 30° | 41° | — | — |
| 2014 | 47° | 39° | 43° | 0.08" | — |
| 2013 | 70° | 34° | 52° | — | — |
| 2012 | 76° | 42° | 59° | — | — |
| 2011 | 56° | 39° | 47° | — | — |
| 2010 | 54° | 29° | 41° | — | — |
| 2009 | 59° | 33° | 46° | — | — |
| 2008 | 67° | 44° | 55° | 0.33" | — |
| 2007 | 68° | 40° | 54° | — | — |
| 2006warmest | 75° | 55° | 65° | — | — |
| 2005 | 57° | 43° | 50° | — | — |
| 2004 | 63° | 40° | 51° | — | — |
| 2003 | 59° | 37° | 48° | — | — |
| 2002 | 68° | 58° | 63° | — | — |
| 2001 | 67° | 37° | 52° | — | — |
| 2000 | 53° | 36° | 44° | — | — |
| 1999 | 57° | 42° | 50° | 1.47" | — |
| 1998 | 54° | 47° | 50° | 2.16" | — |
| 1997 | 69° | 36° | 52° | — | — |
| 1996 | 32° | 22° | 27° | — | — |
| 1995 | 55° | 37° | 46° | 1.6" | — |
| 1994 | 65° | 35° | 50° | — | — |
| 1993 | 58° | 33° | 45° | — | — |
| 1992 | 60° | 35° | 48° | — | — |
| 1991 | 52° | 43° | 47° | 0.79" | — |
| 1990 | 59° | 48° | 54° | 0.28" | — |
| 1989 | 35° | 26° | 31° | — | — |
| 1988 | 67° | 36° | 51° | — | — |
| 1987 | 52° | 40° | 46° | 0.15" | — |
| 1986 | 51° | 41° | 46° | 0.2" | — |
| 1985 | 43° | 30° | 36° | — | — |
| 1984 | 54° | 42° | 48° | — | — |
| 1983 | 34° | 15° | 24° | — | — |
| 1982 | 73° | 52° | 62° | — | — |
| 1981 | 44° | 20° | 32° | — | — |
| 1980 | 82° | 46° | 64° | — | — |
| 1979 | 55° | 25° | 40° | — | — |
| 1978 | 71° | 46° | 59° | — | — |
| 1977 | 80° | 36° | 58° | — | — |
| 1976 | 70° | 46° | 58° | — | — |
| 1975 | 40° | 22° | 31° | — | — |
| 1974 | 66° | 40° | 53° | — | — |
| 1973 | 70° | 44° | 57° | — | — |
| 1972 | 55° | 37° | 46° | 0.03" | — |
| 1971 | 58° | 35° | 46° | — | — |
55 years of data from RICHARDSON