Weather on August 17
Lewisville, TX
55 Years of Data
About This Date
August 17th in Lewisville, TX typically brings hot summer weather, with average highs around 95°F and lows near 73°F. Over 55 years of records, the warmest August 17th was in 2000 (92°F average), while the coldest was 1992 (73°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 18% of August 17th dates historically, with the wettest August 17th recording 5.59" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for August 17th in Lewisville, TX? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 100° | 80° | 90° | — | — |
| 2024 | 103° | 82° | 92° | — | — |
| 2023 | 96° | 67° | 81° | — | — |
| 2022 | 100° | 80° | 90° | — | — |
| 2021 | 92° | 74° | 83° | — | — |
| 2020 | 103° | 70° | 86° | 1.19" | — |
| 2019 | 99° | 79° | 89° | — | — |
| 2018 | 97° | 79° | 88° | — | — |
| 2017 | 92° | 71° | 81° | 5.59" | — |
| 2016 | 85° | 66° | 75° | — | — |
| 2015 | 96° | 67° | 81° | — | — |
| 2014 | 101° | 73° | 87° | 0.38" | — |
| 2013 | 89° | 64° | 77° | — | — |
| 2012 | 86° | 73° | 80° | 0.13" | — |
| 2011 | 104° | 76° | 90° | — | — |
| 2010 | 102° | 77° | 90° | — | — |
| 2009 | 98° | 80° | 89° | — | — |
| 2008 | 81° | 66° | 73° | — | — |
| 2007 | 97° | 76° | 86° | 0.05" | — |
| 2006 | 104° | 76° | 90° | — | — |
| 2005 | 96° | 76° | 86° | — | — |
| 2004 | 91° | 67° | 79° | — | — |
| 2003 | 99° | 75° | 87° | — | — |
| 2002 | 97° | 77° | 87° | — | — |
| 2001 | 82° | 73° | 78° | 1.85" | — |
| 2000warmest | 104° | 80° | 92° | — | — |
| 1999 | 103° | 67° | 85° | — | — |
| 1998 | 97° | 76° | 86° | — | — |
| 1997 | 96° | 79° | 87° | — | — |
| 1996 | 83° | 74° | 78° | 0.08" | — |
| 1995 | 95° | 74° | 84° | — | — |
| 1994 | 96° | 70° | 83° | 0.03" | — |
| 1993 | 100° | 77° | 89° | — | — |
| 1992coldest | 85° | 62° | 73° | — | — |
| 1991 | 90° | 72° | 81° | — | — |
| 1990 | 94° | 75° | 84° | — | — |
| 1989 | 85° | 72° | 78° | — | — |
| 1988 | 98° | 75° | 87° | — | — |
| 1987 | 100° | 78° | 89° | — | — |
| 1986 | 99° | 66° | 82° | — | — |
| 1985 | 100° | 75° | 88° | — | — |
| 1984 | 98° | 70° | 84° | — | — |
| 1983 | 98° | 73° | 86° | — | — |
| 1982 | 98° | 73° | 86° | — | — |
| 1981 | 88° | 74° | 81° | 0.33" | — |
| 1980 | 98° | 75° | 87° | — | — |
| 1979 | 91° | 67° | 79° | — | — |
| 1978 | 99° | 76° | 87° | — | — |
| 1977 | 97° | 78° | 87° | — | — |
| 1976 | 95° | 69° | 82° | — | — |
| 1975 | 95° | 69° | 82° | 1.78" | — |
| 1974 | 95° | 76° | 85° | — | — |
| 1973 | 94° | 71° | 82° | — | — |
| 1972 | 93° | 74° | 83° | — | — |
| 1971 | 90° | 71° | 80° | — | — |
Lewisville, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Lewisville, TX Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Lewisville, TX Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Lewisville, TX
Lewisville, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.