Weather on December 18
Mc Kinney, 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 Mc Kinney, 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. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Mc Kinney, 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 | 43° | 33° | 38° | — | — |
| 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