Weather on December 9
Allen, TX
55 Years of Data
Avg High
58°F
Avg Low
36°F
Warmest
2021
67°F avg
Coldest
2005
20°F avg
About This Date
December 9th in Allen, TX typically brings cool winter weather, with average highs around 58°F and lows near 36°F. Over 55 years of records, the warmest December 9th was in 2021 (67°F average), while the coldest was 2005 (20°F) — a 47°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 9th dates historically, with the wettest December 9th recording 7.37" of rain. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in Allen, 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 |
|---|---|---|---|---|---|
| 2025 | 64° | 31° | 47° | — | — |
| 2024 | 68° | 50° | 59° | — | — |
| 2023 | 66° | 44° | 55° | — | — |
| 2022 | 65° | 57° | 61° | 0.84" | — |
| 2021warmest | 79° | 55° | 67° | — | — |
| 2020 | 77° | 30° | 54° | — | — |
| 2019 | 72° | 39° | 55° | — | — |
| 2018 | 51° | 35° | 43° | — | — |
| 2017 | 59° | 24° | 42° | — | — |
| 2016 | 37° | 22° | 30° | — | — |
| 2015 | 71° | 41° | 56° | — | — |
| 2014 | 64° | 34° | 49° | — | — |
| 2013 | 32° | 27° | 30° | — | — |
| 2012 | 68° | 40° | 54° | — | — |
| 2011 | 47° | 32° | 39° | — | — |
| 2010 | 58° | 33° | 45° | — | — |
| 2009 | 48° | 23° | 36° | — | — |
| 2008 | 66° | 32° | 49° | 0.15" | — |
| 2007 | 53° | 35° | 44° | 0.05" | — |
| 2006 | 51° | 23° | 37° | — | — |
| 2005coldest | 31° | 10° | 20° | — | — |
| 2004 | 66° | 40° | 53° | 0.03" | — |
| 2003 | 71° | 49° | 60° | — | — |
| 2002 | 49° | 43° | 46° | 2.69" | — |
| 2001 | 51° | 26° | 39° | — | — |
| 2000 | 58° | 34° | 46° | — | — |
| 1999 | 67° | 54° | 60° | 1.22" | — |
| 1998 | 52° | 31° | 41° | — | — |
| 1997 | 70° | 39° | 54° | — | — |
| 1996 | 70° | 41° | 55° | — | — |
| 1995 | 45° | 18° | 31° | — | — |
| 1994 | 48° | 36° | 42° | 2.41" | — |
| 1993 | 71° | 58° | 64° | — | — |
| 1992 | 56° | 43° | 49° | 1.75" | — |
| 1991 | 71° | 54° | 62° | 7.37" | — |
| 1990 | 67° | 36° | 51° | — | — |
| 1989 | 59° | 24° | 42° | — | — |
| 1988 | 43° | 32° | 37° | 1.57" | — |
| 1987 | 64° | 36° | 50° | — | — |
| 1986 | 48° | 40° | 44° | 0.18" | — |
| 1985 | 72° | 53° | 62° | — | — |
| 1984 | 73° | 49° | 61° | — | — |
| 1983 | 70° | 53° | 61° | — | — |
| 1982 | 45° | 34° | 39° | — | — |
| 1981 | 70° | 47° | 58° | — | — |
| 1980 | 45° | 36° | 40° | 1.4" | — |
| 1979 | 63° | 31° | 47° | — | — |
| 1978 | 37° | 19° | 28° | — | — |
| 1977 | 52° | 20° | 36° | — | — |
| 1976 | 63° | 34° | 48° | — | — |
| 1975 | 65° | 32° | 48° | — | — |
| 1974 | 48° | 18° | 33° | — | — |
| 1973 | 59° | 32° | 46° | — | — |
| 1972 | 38° | 29° | 33° | — | — |
| 1971 | 54° | 48° | 51° | 4.27" | — |
55 years of data from MCKINNEY MUNI AP