Weather on December 20
Richardson, TX
55 Years of Data
Avg High
57°F
Avg Low
38°F
Warmest
2010
62°F avg
Coldest
1983
25°F avg
About This Date
December 20th in Richardson, TX typically brings cool winter weather, with average highs around 57°F and lows near 38°F. Over 55 years of records, the warmest December 20th was in 2010 (62°F average), while the coldest was 1983 (25°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 20% of December 20th dates historically, with the wettest December 20th recording 10.11" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Richardson, TX? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 37° | 59° | — | — |
| 2024 | 56° | 40° | 48° | — | — |
| 2023 | 64° | 45° | 54° | — | — |
| 2022 | 55° | 37° | 46° | — | — |
| 2021 | 50° | 36° | 43° | 0.33" | — |
| 2020 | 63° | 34° | 48° | — | — |
| 2019 | 48° | 41° | 45° | — | — |
| 2018 | 59° | 45° | 52° | 0.03" | — |
| 2017 | 61° | 37° | 49° | 0.03" | — |
| 2016 | 53° | 25° | 39° | — | — |
| 2015 | 60° | 47° | 53° | — | — |
| 2014 | 46° | 43° | 44° | — | — |
| 2013 | 67° | 34° | 50° | 0.05" | — |
| 2012 | 55° | 36° | 45° | — | — |
| 2011 | 54° | 41° | 47° | 0.03" | — |
| 2010warmest | 75° | 49° | 62° | — | — |
| 2009 | 60° | 27° | 43° | — | — |
| 2008 | 68° | 32° | 50° | — | — |
| 2007 | 62° | 45° | 53° | — | — |
| 2006 | 63° | 48° | 55° | 1.88" | — |
| 2005 | 44° | 39° | 42° | 0.69" | — |
| 2004 | 71° | 41° | 56° | — | — |
| 2003 | 65° | 32° | 48° | — | — |
| 2002 | 60° | 36° | 48° | — | — |
| 2001 | 61° | 32° | 46° | — | — |
| 2000 | 65° | 33° | 49° | — | — |
| 1999 | 47° | 38° | 42° | — | — |
| 1998 | 54° | 42° | 48° | — | — |
| 1997 | 63° | 48° | 55° | — | — |
| 1996 | 47° | 23° | 35° | — | — |
| 1995 | 39° | 36° | 37° | — | — |
| 1994 | 62° | 45° | 53° | — | — |
| 1993 | 51° | 34° | 42° | — | — |
| 1992 | 43° | 37° | 40° | 0.03" | — |
| 1991 | 58° | 42° | 50° | 10.11" | — |
| 1990 | 66° | 47° | 56° | 0.13" | — |
| 1989 | 41° | 22° | 31° | — | — |
| 1988 | 60° | 42° | 51° | — | — |
| 1987 | 50° | 37° | 44° | — | — |
| 1986 | 55° | 41° | 48° | — | — |
| 1985 | 46° | 32° | 39° | — | — |
| 1984 | 69° | 51° | 60° | — | — |
| 1983coldest | 34° | 17° | 25° | — | — |
| 1982 | 67° | 38° | 52° | — | — |
| 1981 | 44° | 38° | 41° | — | — |
| 1980 | 31° | 25° | 28° | — | — |
| 1979 | 70° | 49° | 59° | — | — |
| 1978 | 78° | 43° | 60° | 0.03" | — |
| 1977 | 54° | 38° | 46° | — | — |
| 1976 | 48° | 29° | 38° | — | — |
| 1975 | 66° | 32° | 49° | — | — |
| 1974 | 61° | 33° | 47° | — | — |
| 1973 | 44° | 23° | 34° | — | — |
| 1972 | 70° | 48° | 59° | — | — |
| 1971 | 73° | 49° | 61° | — | — |
55 years of data from RICHARDSON