Weather on March 18
Lewisville, TX
55 Years of Data
Avg High
71°F
Avg Low
47°F
Warmest
1974
74°F avg
Coldest
2001
36°F avg
About This Date
March 18th in Lewisville, TX typically brings pleasant spring weather, with average highs around 71°F and lows near 47°F. Over 56 years of records, the warmest March 18th was in 1974 (74°F average), while the coldest was 2001 (36°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 25% of March 18th dates historically, with the wettest March 18th recording 5.08" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for March 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 |
|---|---|---|---|---|---|
| 2026 | 74° | 43° | 58° | — | — |
| 2025 | 83° | 44° | 63° | — | — |
| 2024 | 64° | 46° | 55° | — | — |
| 2023 | 71° | 38° | 54° | — | — |
| 2022 | 75° | 46° | 61° | 0.28" | — |
| 2021 | 68° | 41° | 55° | — | — |
| 2020 | 66° | 58° | 62° | 5.08" | — |
| 2019 | 65° | 35° | 50° | — | — |
| 2018 | 75° | 51° | 63° | 0.05" | — |
| 2017 | 78° | 63° | 70° | — | — |
| 2016 | 63° | 39° | 51° | — | — |
| 2015 | 81° | 54° | 67° | 0.13" | — |
| 2014 | 60° | 34° | 47° | — | — |
| 2013 | 69° | 52° | 60° | — | — |
| 2012 | 77° | 66° | 72° | — | — |
| 2011 | 84° | 54° | 69° | — | — |
| 2010 | 62° | 37° | 50° | — | — |
| 2009 | 82° | 54° | 68° | — | — |
| 2008 | 77° | 57° | 67° | — | — |
| 2007 | 72° | 41° | 56° | — | — |
| 2006 | 52° | 47° | 49° | 4.24" | — |
| 2005 | 79° | 49° | 64° | — | — |
| 2004 | 82° | 61° | 71° | — | — |
| 2003 | 65° | 51° | 58° | 2.08" | — |
| 2002 | 59° | 55° | 57° | 3.78" | — |
| 2001coldest | 49° | 23° | 36° | — | — |
| 2000 | 68° | 36° | 52° | — | — |
| 1999 | 65° | 56° | 60° | 0.69" | — |
| 1998 | 75° | 43° | 59° | 0.03" | — |
| 1997 | 71° | 47° | 59° | — | — |
| 1996 | 58° | 43° | 50° | 0.76" | — |
| 1995 | 79° | 49° | 64° | — | — |
| 1994 | 82° | 60° | 71° | — | — |
| 1993 | 56° | 46° | 51° | — | — |
| 1992 | 70° | 49° | 59° | — | — |
| 1991 | 67° | 42° | 54° | — | — |
| 1990 | 77° | 51° | 64° | — | — |
| 1989 | 70° | 48° | 59° | — | — |
| 1988 | 49° | 29° | 39° | — | — |
| 1987 | 67° | 44° | 55° | — | — |
| 1986 | 73° | 50° | 62° | 1.12" | — |
| 1985 | 69° | 38° | 53° | — | — |
| 1984 | 75° | 58° | 66° | 0.08" | — |
| 1983 | — | 36° | — | — | — |
| 1982 | 84° | 54° | 69° | — | — |
| 1981 | 76° | 41° | 58° | — | — |
| 1980 | 74° | 29° | 51° | — | — |
| 1979 | 71° | 59° | 65° | 0.25" | — |
| 1978 | 83° | 42° | 62° | — | — |
| 1977 | 75° | 53° | 64° | — | — |
| 1976 | 74° | 42° | 58° | — | — |
| 1975 | 65° | 47° | 56° | 0.2" | — |
| 1974warmest | 88° | 60° | 74° | — | — |
| 1973 | 76° | 49° | 62° | — | — |
| 1972 | 84° | 54° | 69° | — | — |
| 1971 | 76° | 57° | 66° | — | — |
56 years of data from DENTON 2 SE