Weather on December 18
Allen, TX
55 Years of Data
Avg High
58°F
Avg Low
35°F
Warmest
1980
64°F avg
Coldest
2016
22°F avg
About This Date
December 18th in Allen, TX typically brings cool winter weather, with average highs around 58°F and lows near 35°F. Over 55 years of records, the warmest December 18th was in 1980 (64°F average), while the coldest was 2016 (22°F) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 20% of December 18th dates historically, with the wettest December 18th recording 6.4" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 18th in Allen, TX? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 45° | 57° | — | — |
| 2024 | 68° | 39° | 54° | 0.41" | — |
| 2023 | 62° | 35° | 49° | — | — |
| 2022 | 54° | 25° | 40° | — | — |
| 2021 | 71° | 38° | 54° | 1.7" | — |
| 2020 | 59° | 34° | 46° | — | — |
| 2019 | 58° | 22° | 40° | — | — |
| 2018 | 60° | 34° | 47° | — | — |
| 2017 | 51° | 45° | 48° | 0.03" | — |
| 2016coldest | 29° | 15° | 22° | — | — |
| 2015 | 51° | 29° | 40° | — | — |
| 2014 | 47° | 39° | 43° | — | — |
| 2013 | 69° | 31° | 50° | — | — |
| 2012 | 75° | 35° | 55° | — | — |
| 2011 | 56° | 34° | 45° | — | — |
| 2010 | 51° | 28° | 40° | — | — |
| 2009 | 59° | 30° | 45° | — | — |
| 2008 | 68° | 43° | 55° | 0.3" | — |
| 2007 | 67° | 35° | 51° | — | — |
| 2006 | 74° | 52° | 63° | — | — |
| 2005 | 48° | 37° | 43° | — | — |
| 2004 | 63° | 28° | 45° | — | — |
| 2003 | 63° | 26° | 44° | — | — |
| 2002 | 68° | 56° | 62° | — | — |
| 2001 | 66° | 33° | 50° | — | — |
| 2000 | 53° | 31° | 42° | — | — |
| 1999 | 52° | 35° | 43° | 0.99" | — |
| 1998 | 53° | 44° | 49° | 2.01" | — |
| 1997 | 66° | 29° | 47° | — | — |
| 1996 | 28° | 20° | 24° | 0.03" | — |
| 1995 | 54° | 39° | 46° | 1.7" | — |
| 1994 | 63° | 38° | 50° | — | — |
| 1993 | 55° | 33° | 44° | — | — |
| 1992 | 56° | 31° | 43° | — | — |
| 1991 | 59° | 44° | 52° | — | — |
| 1990 | 66° | 46° | 56° | 0.76" | — |
| 1989 | 33° | 24° | 29° | — | — |
| 1988 | 66° | 30° | 48° | — | — |
| 1987 | 46° | 40° | 43° | — | — |
| 1986 | 52° | 41° | 46° | 2.03" | — |
| 1985 | 56° | 30° | 43° | — | — |
| 1984 | 58° | 40° | 49° | 6.4" | — |
| 1983 | 34° | 20° | 27° | — | — |
| 1982 | 70° | 50° | 60° | — | — |
| 1981 | 42° | 19° | 31° | — | — |
| 1980warmest | 79° | 50° | 64° | — | — |
| 1979 | 51° | 21° | 36° | — | — |
| 1978 | 70° | 43° | 56° | — | — |
| 1977 | 77° | 34° | 55° | — | — |
| 1976 | 66° | 41° | 54° | — | — |
| 1975 | 38° | 16° | 27° | — | — |
| 1974 | 63° | 40° | 51° | — | — |
| 1973 | 69° | 40° | 54° | — | — |
| 1972 | 44° | 31° | 37° | — | — |
| 1971 | 57° | 30° | 44° | — | — |
55 years of data from MCKINNEY MUNI AP