Weather on July 18
Mcallen, TX
55 Years of Data
Avg High
96°F
Avg Low
76°F
Warmest
2018
93°F avg
Coldest
1974
79°F avg
About This Date
July 18th in Mcallen, TX typically brings hot summer weather, with average highs around 96°F and lows near 76°F. Over 55 years of records, the warmest July 18th was in 2018 (93°F average), while the coldest was 1974 (79°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 11% of July 18th dates historically, with the wettest July 18th recording 3.38" 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 July 18th in Mcallen, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 77° | 87° | — | — |
| 2024 | 96° | 80° | 88° | — | — |
| 2023 | 101° | 80° | 90° | — | — |
| 2022 | 99° | 77° | 88° | — | — |
| 2021 | 94° | 77° | 85° | — | — |
| 2020 | 96° | 76° | 86° | 0.03" | — |
| 2019 | 98° | 79° | 88° | — | — |
| 2018warmest | 105° | 80° | 93° | — | — |
| 2017 | 100° | 77° | 89° | — | — |
| 2016 | 100° | 79° | 89° | — | — |
| 2015 | 99° | 77° | 88° | — | — |
| 2014 | 98° | 80° | 89° | — | — |
| 2013 | 86° | 75° | 81° | — | — |
| 2012 | 94° | 78° | 86° | — | — |
| 2011 | 98° | 77° | 88° | — | — |
| 2010 | 98° | 78° | 88° | — | — |
| 2009 | 103° | 79° | 91° | — | — |
| 2008 | 95° | 76° | 85° | — | — |
| 2007 | 85° | 75° | 80° | — | — |
| 2006 | 100° | 78° | 89° | — | — |
| 2005 | 96° | 77° | 87° | — | — |
| 2004 | 99° | 77° | 88° | — | — |
| 2003 | 92° | 74° | 83° | 1.27" | — |
| 2002 | 96° | 76° | 86° | — | — |
| 2001 | 99° | 78° | 88° | — | — |
| 2000 | 99° | 77° | 88° | — | — |
| 1999 | 84° | 73° | 79° | 1.75" | — |
| 1998 | 101° | 78° | 89° | — | — |
| 1997 | 101° | 77° | 89° | — | — |
| 1996 | 98° | 78° | 88° | — | — |
| 1995 | 99° | 75° | 87° | 0.58" | — |
| 1994 | 101° | 75° | 88° | — | — |
| 1993 | 97° | 76° | 86° | — | — |
| 1992 | 96° | 77° | 87° | — | — |
| 1991 | 94° | 74° | 84° | — | — |
| 1990 | 93° | 78° | 86° | — | — |
| 1989 | 98° | 78° | 88° | — | — |
| 1988 | 104° | 73° | 89° | — | — |
| 1987 | 96° | 79° | 87° | — | — |
| 1986 | 96° | 73° | 85° | — | — |
| 1985 | 96° | 74° | 85° | — | — |
| 1984 | 97° | 71° | 84° | — | — |
| 1983 | 93° | 75° | 84° | 3.38" | — |
| 1982 | 97° | 75° | 86° | — | — |
| 1981 | 98° | 76° | 87° | — | — |
| 1980 | 102° | 74° | 88° | — | — |
| 1979 | 99° | 75° | 87° | — | — |
| 1978 | 100° | 71° | 86° | — | — |
| 1977 | 90° | 73° | 81° | 0.64" | — |
| 1976 | 90° | 75° | 82° | — | — |
| 1975 | 90° | 74° | 82° | — | — |
| 1974coldest | 92° | 66° | 79° | — | — |
| 1973 | 95° | 75° | 85° | — | — |
| 1972 | 89° | 72° | 80° | — | — |
| 1971 | 95° | 73° | 84° | — | — |
55 years of data from MCALLEN