Weather on October 18
Lewisville, TX
55 Years of Data
Avg High
77°F
Avg Low
54°F
Warmest
2004
82°F avg
Coldest
1989
49°F avg
About This Date
October 18th in Lewisville, TX typically brings pleasant fall weather, with average highs around 77°F and lows near 54°F. Over 55 years of records, the warmest October 18th was in 2004 (82°F average), while the coldest was 1989 (49°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 20% of October 18th dates historically, with the wettest October 18th recording 7.06" of rain. The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for October 18th in Lewisville, TX? Great weather for outdoor activities.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 63° | 76° | — | — |
| 2024 | 70° | 48° | 59° | — | — |
| 2023 | 74° | 43° | 58° | — | — |
| 2022 | 67° | 44° | 55° | — | — |
| 2021 | 74° | 47° | 60° | — | — |
| 2020 | 76° | 53° | 64° | — | — |
| 2019 | 72° | 46° | 59° | — | — |
| 2018 | 56° | 51° | 53° | 0.91" | — |
| 2017 | 74° | 46° | 60° | — | — |
| 2016 | 89° | 71° | 80° | — | — |
| 2015 | 76° | 54° | 65° | — | — |
| 2014 | 83° | 59° | 71° | — | — |
| 2013 | 71° | 45° | 58° | — | — |
| 2012 | 85° | 52° | 68° | — | — |
| 2011 | 87° | 53° | 70° | 0.94" | — |
| 2010 | 78° | 52° | 65° | — | — |
| 2009 | 71° | 46° | 59° | — | — |
| 2008 | 75° | 52° | 63° | — | — |
| 2007 | 85° | 65° | 75° | — | — |
| 2006 | 88° | 62° | 75° | — | — |
| 2005 | 92° | 60° | 76° | — | — |
| 2004warmest | 90° | 74° | 82° | — | — |
| 2003 | 80° | 49° | 64° | — | — |
| 2002 | 66° | 60° | 63° | 7.06" | — |
| 2001 | 76° | 52° | 64° | — | — |
| 2000 | 81° | 62° | 71° | — | — |
| 1999 | 62° | 49° | 55° | 1.02" | — |
| 1998 | 71° | 55° | 63° | — | — |
| 1997 | 73° | 48° | 61° | — | — |
| 1996 | 66° | 45° | 55° | — | — |
| 1995 | 83° | 55° | 69° | — | — |
| 1994 | 71° | 65° | 68° | 1.85" | — |
| 1993 | 80° | 63° | 71° | 1.55" | — |
| 1992 | 71° | 48° | 60° | — | — |
| 1991 | 85° | 62° | 73° | — | — |
| 1990 | 64° | 45° | 54° | — | — |
| 1989coldest | 55° | 43° | 49° | 0.46" | — |
| 1988 | 87° | 64° | 76° | — | — |
| 1987 | 80° | 55° | 68° | 0.56" | — |
| 1986 | 78° | 50° | 64° | — | — |
| 1985 | 74° | 62° | 68° | 3.05" | — |
| 1984 | 87° | 62° | 75° | 0.08" | — |
| 1983 | 83° | 62° | 72° | — | — |
| 1982 | 83° | 60° | 71° | — | — |
| 1981 | 78° | 52° | 65° | — | — |
| 1980 | 77° | 55° | 66° | — | — |
| 1979 | 83° | 63° | 73° | — | — |
| 1978 | 82° | 45° | 63° | — | — |
| 1977 | 84° | 49° | 66° | — | — |
| 1976 | 66° | 43° | 54° | — | — |
| 1975 | 69° | 44° | 57° | — | — |
| 1974 | 85° | 50° | 67° | — | — |
| 1973 | 75° | 49° | 62° | — | — |
| 1972 | 92° | 66° | 79° | — | — |
| 1971 | 81° | 61° | 71° | 1.32" | — |
55 years of data from DENTON 2 SE