Del Rio weather in May: Del Rio, Texas: normal highs, lows, rain and records for May
Del Rio in May has a normal high of 93°F and a normal low of 71°F, a daily mean of 82°F, rising from 90°F on the 1st to 97°F by the 31st. Measurable precipitation falls on 7 days in a normal May, 3.06 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 34°C and low of 22°C, 78 mm of precipitation in May.
- NOAA stationDel Rio International Airport
- Station IDUSW00022010
- Location29.38°N 100.93°W
- Elevation999 ft (305 m)
- Population34,678
- Jan 68° 44°
- Feb 73° 48°
- Mar 80° 56°
- Apr 87° 63°
- May 93° 71°
- Jun 98° 77°
- Jul 100° 79°
- Aug 101° 79°
- Sep 94° 73°
- Oct 86° 64°
- Nov 75° 53°
- 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 May?
The normal high is 93°F and the normal low 71°F, for a daily mean of 82.1°F. May is 7.2°F warmer than April and 5.6°F cooler than June. May is the 5th warmest month of the year in Del Rio and the wettest. Across the month the normal high rises 7°F, from 90°F on May 1 to 97°F on May 31. From one year to the next May's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Mays in three average between 79°F and 85°F.
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 22%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 90°F | 67°F | 19% | 10% |
| May 8 | 91°F | 69°F | 21% | 11% |
| May 15 | 93°F | 71°F | 21% | 11% |
| May 22 | 95°F | 73°F | 22% | 12% |
| May 31 | 97°F | 75°F | 21% | 11% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 90°F | 67°F | 19% | 10% | 13 h 20 min |
| May 2 | 90°F | 67°F | 20% | 10% | 13 h 20 min |
| May 3 | 90°F | 67°F | 20% | 10% | 13 h 20 min |
| May 4 | 90°F | 68°F | 20% | 10% | 13 h 20 min |
| May 5 | 91°F | 68°F | 20% | 10% | 13 h 20 min |
| May 6 | 91°F | 68°F | 20% | 10% | 13 h 20 min |
| May 7 | 91°F | 68°F | 21% | 11% | 13 h 30 min |
| May 8 | 91°F | 69°F | 21% | 11% | 13 h 30 min |
| May 9 | 91°F | 69°F | 21% | 11% | 13 h 30 min |
| May 10 | 92°F | 69°F | 21% | 11% | 13 h 30 min |
| May 11 | 92°F | 70°F | 21% | 11% | 13 h 30 min |
| May 12 | 92°F | 70°F | 21% | 11% | 13 h 30 min |
| May 13 | 92°F | 70°F | 21% | 11% | 13 h 30 min |
| May 14 | 93°F | 71°F | 21% | 11% | 13 h 30 min |
| May 15 | 93°F | 71°F | 21% | 11% | 13 h 40 min |
| May 16 | 93°F | 71°F | 21% | 12% | 13 h 40 min |
| May 17 | 93°F | 72°F | 22% | 12% | 13 h 40 min |
| May 18 | 94°F | 72°F | 22% | 12% | 13 h 40 min |
| May 19 | 94°F | 72°F | 22% | 12% | 13 h 40 min |
| May 20 | 94°F | 72°F | 22% | 12% | 13 h 40 min |
| May 21 | 94°F | 73°F | 22% | 12% | 13 h 40 min |
| May 22 | 95°F | 73°F | 22% | 12% | 13 h 40 min |
| May 23 | 95°F | 73°F | 22% | 12% | 13 h 50 min |
| May 24 | 95°F | 74°F | 22% | 12% | 13 h 50 min |
| May 25 | 95°F | 74°F | 22% | 12% | 13 h 50 min |
| May 26 | 96°F | 74°F | 22% | 12% | 13 h 50 min |
| May 27 | 96°F | 74°F | 22% | 12% | 13 h 50 min |
| May 28 | 96°F | 75°F | 21% | 12% | 13 h 50 min |
| May 29 | 96°F | 75°F | 21% | 12% | 13 h 50 min |
| May 30 | 96°F | 75°F | 21% | 12% | 13 h 50 min |
| May 31 | 97°F | 75°F | 21% | 11% | 13 h 50 min |
- Normal high
- 93°FMay average
- Normal low
- 71°FMay average
- Precipitation
- 3.06 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 18
- Daylight
- 13 h 20 min to 13 h 50 minMay 1 to May 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 29
- Sunshine
- 76%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 May?
On a given May day the chance of 0.01 inch or more is 21% on average, highest around May 21 (22%). In all, 3.06 in falls on 7 days of a normal May, 1 of them with an inch or more.
In a normal May in Del Rio, 18 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00022010.
How humid and windy is Del Rio in May?
At 3 p.m. the normal temperature is 92°F with 40% relative humidity and a dew point of 64°F; at 6 a.m. it is 73°F with 81% humidity. The wind averages 10.1 mph, most often from the southeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 73°F | 67°F | 81% | 8.4 mph | 55% |
| 9 a.m. | 79°F | 68°F | 69% | 9.9 mph | – |
| noon | 86°F | 67°F | 52% | 11.5 mph | 62% |
| 3 p.m. | 92°F | 64°F | 40% | 11.9 mph | 89% |
| 6 p.m. | 92°F | 63°F | 39% | 11.2 mph | 93% |
| 9 p.m. | 85°F | 63°F | 49% | 8.7 mph | 92% |
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 May in Del Rio?
The warmest May temperature on Del Rio's official record (since 1905) is 112°F, on May 26, 2024; the coldest is 45°F, on May 3, 1970. The wettest May brought 10.45 in (2010).
The May mean against the 1991-2020 normal of 82.1°F: 2021 80.7°F (−1.4), 2022 84.1°F (+2.0), 2023 79.5°F (−2.6), 2024 87.9°F (+5.8), 2025 82.7°F (+0.6), 2026 78.6°F (−3.5). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.7°F | −1.4°F | 4.03 in |
| 2022 | 84.1°F | +2.0°F | 1.93 in |
| 2023 | 79.5°F | −2.6°F | 5.02 in |
| 2024 | 87.9°F | +5.8°F | 0.06 in |
| 2025 | 82.7°F | +0.6°F | 0.90 in |
| 2026 | 78.6°F | −3.5°F | 0.93 in |
Source: records: ACIS, NWS threaded record DRTthr; recent months: ACIS, station USW00022010. Records and recent months use complete months only.
How does May in Del Rio compare across Texas?
Across the 321 places PlainClimate covers in Texas, May normal highs run from 78°F in Hartley to 98°F in Terlingua; Del Rio's is 93°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.