Weather on December 20
Grand Prairie, TX
55 Years of Data
Avg High
58°F
Avg Low
38°F
Warmest
2025
67°F avg
Coldest
1983
25°F avg
About This Date
December 20th in Grand Prairie, TX typically brings cool winter weather, with average highs around 58°F and lows near 38°F. Over 55 years of records, the warmest December 20th was in 2025 (67°F average), while the coldest was 1983 (25°F) — a 42°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 10.24" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Grand Prairie, TX? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 83° | 51° | 67° | — | — |
| 2024 | 57° | 39° | 48° | — | — |
| 2023 | 66° | 45° | 55° | — | — |
| 2022 | 55° | 41° | 48° | — | — |
| 2021 | 54° | 39° | 46° | 0.25" | — |
| 2020 | 63° | 34° | 48° | — | — |
| 2019 | 50° | 38° | 44° | — | — |
| 2018 | 57° | 47° | 52° | 0.13" | — |
| 2017 | 59° | 53° | 56° | 5.08" | — |
| 2016 | 35° | 16° | 25° | — | — |
| 2015 | 60° | 38° | 49° | — | — |
| 2014 | 48° | 45° | 46° | 0.03" | — |
| 2013 | 71° | 54° | 62° | — | — |
| 2012 | 70° | 38° | 54° | 0.25" | — |
| 2011 | 64° | 43° | 53° | 1.73" | — |
| 2010 | 78° | 27° | 52° | — | — |
| 2009 | 53° | 32° | 43° | — | — |
| 2008 | 72° | 57° | 64° | — | — |
| 2007 | 66° | 37° | 52° | — | — |
| 2006 | 64° | 51° | 58° | 1.07" | — |
| 2005 | 45° | 39° | 42° | — | — |
| 2004 | 73° | 38° | 55° | — | — |
| 2003 | 58° | 36° | 47° | — | — |
| 2002 | 60° | 37° | 49° | — | — |
| 2001 | 55° | 35° | 45° | — | — |
| 2000 | 45° | 32° | 38° | — | — |
| 1999 | 64° | 37° | 51° | — | — |
| 1998 | 52° | 42° | 47° | 0.23" | — |
| 1997 | 73° | 44° | 59° | 1.42" | — |
| 1996 | 46° | 25° | 35° | — | — |
| 1995 | 39° | 35° | 37° | — | — |
| 1994 | 61° | 43° | 52° | — | — |
| 1993 | 52° | 36° | 44° | 0.18" | — |
| 1992 | 43° | 38° | 40° | — | — |
| 1991 | 57° | 42° | 50° | 10.24" | — |
| 1990 | 68° | 49° | 58° | — | — |
| 1989 | 42° | 20° | 31° | — | — |
| 1988 | 72° | 54° | 63° | — | — |
| 1987 | 52° | 40° | 46° | — | — |
| 1986 | 56° | 38° | 47° | — | — |
| 1985 | 48° | 28° | 38° | — | — |
| 1984 | 69° | 52° | 60° | — | — |
| 1983coldest | 32° | 18° | 25° | — | — |
| 1982 | 68° | 38° | 53° | — | — |
| 1981 | 46° | 38° | 42° | — | — |
| 1980 | 33° | 28° | 31° | — | — |
| 1979 | 71° | 46° | 59° | — | — |
| 1978 | 77° | 44° | 61° | — | — |
| 1977 | 55° | 37° | 46° | — | — |
| 1976 | 48° | 30° | 39° | — | — |
| 1975 | 62° | 29° | 45° | — | — |
| 1974 | 60° | 36° | 48° | — | — |
| 1973 | 43° | 22° | 32° | — | — |
| 1972 | 71° | 42° | 57° | — | — |
| 1971 | 73° | 43° | 58° | — | — |
55 years of data from DALLAS HENSLEY FLD NAS