Del Rio, TX

Texas · Records since 1905–2026

☀️ 99°F
Currently in Del Rio
As of 7:00 PM CDT

Records for July 28

🔥 Record High

107°F

July 28, 1980

+5° from 102° normal

❄ Record Low

66°F

July 28, 1994

-13° from 79° normal
🌞 Normal high: 102°F 🌑 Normal low: 79°F 1991–2020 normals

All-Time Records — Del Rio

🔥
115°F
Hottest Day Ever
Jun 21, 2023
10°F
Coldest Day Ever
Dec 23, 1989
🌧
17.03"
Wettest Day Ever
Aug 23, 1998
11.2"
Most Snow in One Day
Feb 18, 2021

Top 10 Record Highs — July 28

# Temp Date
🏆 107°F July 28, 1980
2 106°F July 28, 1995
3 105°F July 28, 2009
4 105°F July 28, 1960
5 105°F July 28, 1944
6 104°F July 28, 1974
7 104°F July 28, 1951
8 103°F July 28, 2023
9 103°F July 28, 1962
10 103°F July 28, 1957

Top 5 Record Lows — July 28

# Temp Date
🥶 66°F July 28, 1994
2 69°F July 28, 1933
3 70°F July 28, 1978
4 70°F July 28, 1968
5 70°F July 28, 1934
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1905–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Del Rio

threshold: 102°F (90th percentile of historical Jun–Aug highs)
5.7
Avg heat wave length
days (historical)
106°
Avg peak temp
during heat waves
82
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

79 of 207 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1906–2026
86
2026 so far
130
Avg/year 1970–2025
162
Avg/year (last 10 complete)
199
Most in a year (2024)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Del Rio

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 30, 2024 – Aug 24, 2024 26 113°F (Aug 22) 106°F 82°F
2 Jul 30, 2023 – Aug 21, 2023 23 111°F (Aug 10) 108°F 82°F
3 Jul 9, 2023 – Jul 28, 2023 20 108°F (Jul 13) 106°F 81°F
4 Jul 11, 1980 – Jul 30, 1980 20 107°F (Jul 28) 103°F 77°F
5 Jul 31, 2020 – Aug 17, 2020 18 108°F (Aug 15) 104°F 79°F
6 Aug 5, 2019 – Aug 21, 2019 17 108°F (Aug 13) 105°F 80°F
7 Jul 10, 1998 – Jul 26, 1998 17 107°F (Jul 12) 104°F 81°F
8 Jun 18, 1980 – Jul 3, 1980 16 108°F (Jun 27) 104°F 79°F
9 Jul 3, 2020 – Jul 17, 2020 15 112°F (Jul 13) 107°F 81°F
10 Jun 18, 2023 – Jun 30, 2023 13 115°F (Jun 21) 109°F 82°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

10
2026 so far
above-normal nights
8.9
Avg / summer
1970–2020
69
Most in a summer
2023

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

14.28"
2026 YTD
Normal: 10.52"
+3.76"
7.47"
July so far
July normal: 1.48"
+5.99"
9.02"
Summer so far
Summer normal: 6.49"
+2.53"
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")