McAllen, TX
Texas · Records since 1941–2026
☀️ 94°F
Currently in McAllen
As of 7:00 PM CDT
Records for July 28
🔥 Record High
104°F
July 28, 2017
+4° from 100° normal❄ Record Low
70°F
July 28, 1956
-9° from 79° normal
🌞 Normal high: 100°F 🌑 Normal low: 79°F 1991–2020 normals
All-Time Records — McAllen
111°F
Hottest Day Ever
May 9, 2024
13°F
Coldest Day Ever
Jan 12, 1962
9.42"
Wettest Day Ever
Aug 10, 1980
0.3"
Most Snow in One Day
Dec 8, 2017
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 104°F | July 28, 2017 |
| 2 | 104°F | July 28, 1988 |
| 3 | 104°F | July 28, 1943 |
| 4 | 103°F | July 28, 2018 |
| 5 | 103°F | July 28, 2016 |
| 6 | 103°F | July 28, 2012 |
| 7 | 103°F | July 28, 1980 |
| 8 | 102°F | July 28, 2015 |
| 9 | 102°F | July 28, 2014 |
| 10 | 102°F | July 28, 2013 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 70°F | July 28, 1956 |
| 2 | 70°F | July 28, 1952 |
| 3 | 71°F | July 28, 1961 |
| 4 | 71°F | July 28, 1955 |
| 5 | 72°F | July 28, 1987 |
Heat Wave Summary — McAllen
threshold: 102°F (90th percentile of historical Jun–Aug highs)5.5
Avg heat wave length
days (historical)
104°
Avg peak temp
during heat waves
115
Dangerous nights 2026
Overnights ≥ 70°F
3
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
131 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1941–2026128
2026 so far
167
Avg/year 1970–2025
204
Avg/year (last 10 complete)
226
Most in a year (2025)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — McAllen
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 15, 2009 – Aug 8, 2009 | 25 | 107°F (Jul 20) | 105°F | 82°F |
| 2 | Aug 10, 2019 – Aug 31, 2019 | 22 | 106°F (Aug 12) | 104°F | 80°F |
| 3 | Jul 31, 2023 – Aug 20, 2023 | 21 | 105°F (Aug 4) | 103°F | 80°F |
| 4 | Jul 28, 2016 – Aug 13, 2016 | 17 | 107°F (Aug 11) | 104°F | 80°F |
| 5 | Aug 3, 2015 – Aug 19, 2015 | 17 | 106°F (Aug 13) | 104°F | 80°F |
| 6 | Jul 17, 2018 – Aug 1, 2018 | 16 | 109°F (Jul 24) | 104°F | 81°F |
| 7 | Aug 15, 2018 – Aug 30, 2018 | 16 | 106°F (Aug 23) | 104°F | 81°F |
| 8 | Sep 3, 2023 – Sep 15, 2023 | 13 | 105°F (Sep 4) | 103°F | 79°F |
| 9 | Jun 15, 2017 – Jun 24, 2017 | 10 | 111°F (Jun 22) | 104°F | 80°F |
| 10 | Aug 5, 1998 – Aug 14, 1998 | 10 | 105°F (Aug 6) | 103°F | 78°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
38
2026 so far
above-normal nights
14.5
Avg / summer
1970–2020
63
Most in a summer
2009
Above-Normal Summer Nights Per Year
Average June–August Low by Decade
Overnight lows · complete decades only
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
9.81"
2026 YTD
Normal: 11.22"
-1.41"
0.28"
July so far
July normal: 2.03"
-1.75"
1.87"
Summer so far
Summer normal: 6.89"
-5.02"
3
2026 heavy rain days
Days with ≥ 1.0"
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1970–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")