Weather on December 21
Arlington, TX
55 Years of Data
Avg High
60°F
Avg Low
37°F
Warmest
2010
68°F avg
Coldest
2008
31°F avg
About This Date
December 21st in Arlington, TX typically brings mild winter weather, with average highs around 60°F and lows near 37°F. Over 36 years of records, the warmest December 21st was in 2010 (68°F average), while the coldest was 2008 (31°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 21st dates historically, with the wettest December 21st recording 13.61" of rain. The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Arlington, TX? Great weather for outdoor activities.
Warming Trend
2.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 57° | 61° | — | — |
| 2024 | 56° | 29° | 43° | — | — |
| 2023 | 60° | 57° | 59° | 2.49" | — |
| 2022 | 52° | 30° | 41° | — | — |
| 2021 | 64° | 30° | 47° | — | — |
| 2020 | 75° | 32° | 54° | — | — |
| 2019 | 50° | 43° | 46° | — | — |
| 2018 | 60° | 38° | 49° | — | — |
| 2017 | 74° | 44° | 59° | — | — |
| 2016 | 65° | 40° | 52° | — | — |
| 2015 | 74° | 42° | 58° | — | — |
| 2014 | 54° | 48° | 51° | — | — |
| 2013 | 55° | 34° | 44° | 3.53" | — |
| 2012 | 64° | 23° | 44° | — | — |
| 2011 | 54° | 29° | 42° | — | — |
| 2010warmest | 85° | 51° | 68° | — | — |
| 2009 | 68° | 37° | 53° | — | — |
| 2008coldest | 39° | 23° | 31° | — | — |
| 2007 | 69° | 38° | 53° | — | — |
| 2006 | 63° | 41° | 52° | — | — |
| 2005 | 54° | 36° | 45° | — | — |
| 2004 | 66° | 46° | 56° | — | — |
| 2003 | 71° | 41° | 56° | — | — |
| 2002 | 71° | 36° | 53° | — | — |
| 2001 | 62° | 36° | 49° | — | — |
| 2000 | 49° | 31° | 40° | — | — |
| 1999 | 47° | 30° | 38° | — | — |
| 1998 | 52° | 43° | 47° | — | — |
| 1997 | 56° | 41° | 48° | — | — |
| 1996 | 47° | 24° | 35° | — | — |
| 1995 | 43° | 33° | 38° | — | — |
| 1994 | 62° | 33° | 48° | — | — |
| 1993 | 51° | 26° | 39° | — | — |
| 1992 | 66° | 37° | 52° | — | — |
| 1991 | 56° | 44° | 50° | 13.61" | — |
| 1990 | 73° | 21° | 47° | 0.43" | — |
36 years of data from ARLINGTON MUNI AP