Weather on August 18
Plano, TX
55 Years of Data
Avg High
95°F
Avg Low
73°F
Warmest
2011
94°F avg
Coldest
1992
71°F avg
About This Date
August 18th in Plano, 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 18th was in 2011 (94°F average), while the coldest was 1992 (71°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 24% of August 18th dates historically, with the wettest August 18th recording 2.16" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 18th in Plano, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 100° | 80° | 90° | — | — |
| 2024 | 106° | 82° | 94° | — | — |
| 2023 | 108° | 81° | 94° | — | — |
| 2022 | 84° | 73° | 79° | 0.33" | — |
| 2021 | 81° | 72° | 76° | 1.85" | — |
| 2020 | 93° | 74° | 83° | — | — |
| 2019 | 97° | 79° | 88° | — | — |
| 2018 | 99° | 71° | 85° | 1.83" | — |
| 2017 | 89° | 75° | 82° | — | — |
| 2016 | 88° | 73° | 80° | 0.66" | — |
| 2015 | 96° | 77° | 87° | — | — |
| 2014 | 91° | 73° | 82° | — | — |
| 2013 | 91° | 64° | 78° | — | — |
| 2012 | 84° | 68° | 76° | 0.71" | — |
| 2011warmest | 105° | 82° | 94° | — | — |
| 2010 | 95° | 78° | 87° | 0.1" | — |
| 2009 | 95° | 77° | 86° | — | — |
| 2008 | 78° | 72° | 75° | 0.97" | — |
| 2007 | 88° | 74° | 81° | — | — |
| 2006 | 103° | 81° | 92° | — | — |
| 2005 | 98° | 75° | 87° | — | — |
| 2004 | 93° | 63° | 78° | — | — |
| 2003 | 99° | 74° | 86° | — | — |
| 2002 | 95° | 72° | 83° | — | — |
| 2001 | 93° | 73° | 83° | 0.91" | — |
| 2000 | 103° | 75° | 89° | — | — |
| 1999 | 101° | 70° | 85° | — | — |
| 1998 | 96° | 74° | 85° | — | — |
| 1997 | 94° | — | — | — | — |
| 1996 | 90° | — | — | — | — |
| 1995 | 99° | 71° | 85° | — | — |
| 1994 | 98° | 74° | 86° | — | — |
| 1993 | 101° | 72° | 86° | — | — |
| 1992coldest | 82° | 61° | 71° | — | — |
| 1991 | 96° | 73° | 85° | — | — |
| 1990 | 98° | 79° | 88° | — | — |
| 1989 | 92° | 53° | 72° | 0.25" | — |
| 1988 | 92° | 71° | 81° | — | — |
| 1987 | 101° | 77° | 89° | — | — |
| 1986 | 102° | 75° | 89° | — | — |
| 1985 | 101° | 76° | 88° | — | — |
| 1984 | 101° | 75° | 88° | — | — |
| 1983 | 96° | 69° | 83° | — | — |
| 1982 | 92° | 73° | 82° | 1.57" | — |
| 1981 | 84° | 69° | 77° | 0.79" | — |
| 1980 | 99° | 76° | 87° | — | — |
| 1979 | 93° | 71° | 82° | — | — |
| 1978 | 102° | 76° | 89° | — | — |
| 1977 | 96° | 73° | 85° | 2.16" | — |
| 1976 | 93° | 71° | 82° | — | — |
| 1975 | 94° | 72° | 83° | 0.64" | — |
| 1974 | 97° | 72° | 84° | — | — |
| 1973 | 92° | 67° | 79° | — | — |
| 1972 | 96° | 70° | 83° | — | — |
| 1971 | 90° | 69° | 79° | — | — |
55 years of data from RICHARDSON