Del Rio weather in July: Del Rio, Texas: normal highs, lows, rain and records for July

Del Rio in July has a normal high of 100°F and a normal low of 79°F, a daily mean of 90°F, rising from 99°F on the 1st to 102°F by the 31st. Measurable precipitation falls on 4 days in a normal July, 1.48 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 38°C and low of 26°C, 38 mm of precipitation in July.

  • NOAA stationDel Rio International Airport
  • Station IDUSW00022010
  • Location29.38°N 100.93°W
  • Elevation999 ft (305 m)
  • Population34,678
  1. Jan 68° 44°
  2. Feb 73° 48°
  3. Mar 80° 56°
  4. Apr 87° 63°
  5. May 93° 71°
  6. Jun 98° 77°
  7. Jul 100° 79°
  8. Aug 101° 79°
  9. Sep 94° 73°
  10. Oct 86° 64°
  11. Nov 75° 53°
  12. Dec 68° 44°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Del Rio in July?

The normal high is 100°F and the normal low 79°F, for a daily mean of 89.5°F. July is 1.8°F warmer than June and 0.4°F cooler than August. July is the 2nd warmest month of the year in Del Rio and the 7th wettest. Across the month the normal high rises 3°F, from 99°F on July 1 to 102°F on July 31. From one year to the next July's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Julys in three average between 87°F and 92°F.

Del Rio in July, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 15%).

Normal high and low on five days of July, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
July 199°F78°F15%8%
July 8100°F78°F13%7%
July 15100°F79°F12%7%
July 22101°F79°F12%6%
July 31102°F79°F11%6%
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 31, coldest night July 1)
Del Rio: NOAA 1991-2020 daily normals for each day of July
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
July 199°F78°F15%8%14 h
July 299°F78°F15%8%14 h
July 399°F78°F14%8%14 h
July 499°F78°F14%8%14 h
July 599°F78°F14%8%14 h
July 699°F78°F14%7%14 h
July 7100°F78°F14%7%14 h
July 8100°F78°F13%7%14 h
July 9100°F78°F13%7%14 h
July 10100°F78°F13%7%14 h
July 11100°F78°F13%7%13 h 50 min
July 12100°F79°F12%7%13 h 50 min
July 13100°F79°F12%7%13 h 50 min
July 14100°F79°F12%7%13 h 50 min
July 15100°F79°F12%7%13 h 50 min
July 16100°F79°F12%7%13 h 50 min
July 17100°F79°F12%7%13 h 50 min
July 18101°F79°F12%7%13 h 50 min
July 19101°F79°F12%7%13 h 50 min
July 20101°F79°F12%7%13 h 50 min
July 21101°F79°F12%7%13 h 50 min
July 22101°F79°F12%6%13 h 50 min
July 23101°F79°F12%6%13 h 40 min
July 24101°F79°F11%6%13 h 40 min
July 25101°F79°F11%6%13 h 40 min
July 26101°F79°F11%6%13 h 40 min
July 27102°F79°F11%6%13 h 40 min
July 28102°F79°F11%6%13 h 40 min
July 29102°F79°F11%6%13 h 40 min
July 30102°F79°F11%6%13 h 40 min
July 31102°F79°F11%6%13 h 30 min
Normal high
100°FJuly average
Normal low
79°FJuly average
Precipitation
1.48 inmonth total
Days with precipitation
40.01 inch or more
Days at 90°F or more
29
Daylight
14 h to 13 h 30 minJuly 1 to July 31
Days at 70°F or more
31
Days at 80°F or more
31
Sunshine
87%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00022010; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Del Rio in July?

On a given July day the chance of 0.01 inch or more is 12% on average, highest around July 1 (15%). In all, 1.48 in falls on 4 days of a normal July, 1 of them with an inch or more.

In a normal July in Del Rio, 29 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00022010.

How humid and windy is Del Rio in July?

At 3 p.m. the normal temperature is 97°F with 34% relative humidity and a dew point of 64°F; at 6 a.m. it is 77°F with 74% humidity. The wind averages 9.2 mph, most often from the southeast in the afternoon.

A normal July day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.77°F68°F74%7.9 mph80%
9 a.m.83°F69°F64%9.5 mph–
noon91°F68°F47%10.4 mph78%
3 p.m.97°F64°F34%11.0 mph92%
6 p.m.96°F62°F33%11.2 mph92%
9 p.m.89°F63°F41%7.6 mph93%

Source: NOAA NCEI 1991-2020 hourly normals, station USW00022010. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).

What are the records for July in Del Rio?

The warmest July temperature on Del Rio's official record (since 1905) is 112°F, on July 13, 2020; the coldest is 63°F, on July 4, 1906. The wettest July brought 13.18 in (1976).

The July mean against the 1991-2020 normal of 89.5°F: 2021 87.9°F (−1.6), 2022 91.0°F (+1.5), 2023 91.7°F (+2.2), 2024 89.3°F (−0.2), 2025 84.7°F (−4.8), 2026 85.2°F (−4.3). 2 of 6 ran warmer than normal.

Del Rio: July in recent years against the 1991-2020 normal
JulyMeanAgainst normalPrecip.
202187.9°F−1.6°F2.27 in
202291.0°F+1.5°F0.00 in
202391.7°F+2.2°F1.66 in
202489.3°F−0.2°F0.57 in
202584.7°F−4.8°F0.93 in
202685.2°F−4.3°F7.47 in

Source: records: ACIS, NWS threaded record DRTthr; recent months: ACIS, station USW00022010. Records and recent months use complete months only.

How does July in Del Rio compare across Texas?

Across the 321 places PlainClimate covers in Texas, July normal highs run from 88°F in Matagorda to 101°F in Presidio; Del Rio's is 100°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places