Brownsville weather in May: Brownsville, Texas: normal highs, lows, rain and records for May
Brownsville in May has a normal high of 90°F and a normal low of 74°F, a daily mean of 82°F, rising from 88°F on the 1st to 93°F by the 31st. Measurable precipitation falls on 5 days in a normal May, 2.22 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 23°C, 56 mm of precipitation in May.
- NOAA stationBrownsville S Padre Island International Airport
- Station IDUSW00012919
- Location25.92°N 97.42°W
- Elevation23 ft (7 m)
- From the center6 miles
- Population191,967
- Jan 73° 53°
- Feb 76° 57°
- Mar 81° 62°
- Apr 86° 68°
- May 90° 74°
- Jun 94° 77°
- Jul 95° 78°
- Aug 96° 78°
- Sep 92° 75°
- Oct 87° 69°
- Nov 80° 61°
- Dec 74° 55°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Brownsville in May?
The normal high is 90°F and the normal low 74°F, for a daily mean of 82.0°F. May is 5.3°F warmer than April and 3.6°F cooler than June. May is the 5th warmest month of the year in Brownsville and the 4th wettest. Across the month the normal high rises 5°F, from 88°F on May 1 to 93°F on May 31. From one year to the next May's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Mays in three average between 80°F and 84°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 17%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 88°F | 71°F | 14% | 7% |
| May 8 | 89°F | 72°F | 14% | 7% |
| May 15 | 90°F | 74°F | 15% | 8% |
| May 22 | 91°F | 75°F | 16% | 8% |
| May 31 | 93°F | 76°F | 17% | 9% |
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 | 88°F | 71°F | 14% | 7% | 13 h 10 min |
| May 2 | 88°F | 71°F | 14% | 7% | 13 h 10 min |
| May 3 | 88°F | 71°F | 14% | 7% | 13 h 10 min |
| May 4 | 88°F | 71°F | 14% | 7% | 13 h 10 min |
| May 5 | 88°F | 72°F | 14% | 7% | 13 h 10 min |
| May 6 | 89°F | 72°F | 14% | 7% | 13 h 10 min |
| May 7 | 89°F | 72°F | 14% | 7% | 13 h 10 min |
| May 8 | 89°F | 72°F | 14% | 7% | 13 h 20 min |
| May 9 | 89°F | 72°F | 15% | 7% | 13 h 20 min |
| May 10 | 89°F | 73°F | 15% | 7% | 13 h 20 min |
| May 11 | 89°F | 73°F | 15% | 7% | 13 h 20 min |
| May 12 | 90°F | 73°F | 15% | 7% | 13 h 20 min |
| May 13 | 90°F | 73°F | 15% | 7% | 13 h 20 min |
| May 14 | 90°F | 73°F | 15% | 7% | 13 h 20 min |
| May 15 | 90°F | 74°F | 15% | 8% | 13 h 20 min |
| May 16 | 90°F | 74°F | 15% | 8% | 13 h 20 min |
| May 17 | 91°F | 74°F | 15% | 8% | 13 h 30 min |
| May 18 | 91°F | 74°F | 15% | 8% | 13 h 30 min |
| May 19 | 91°F | 74°F | 15% | 8% | 13 h 30 min |
| May 20 | 91°F | 75°F | 16% | 8% | 13 h 30 min |
| May 21 | 91°F | 75°F | 16% | 8% | 13 h 30 min |
| May 22 | 91°F | 75°F | 16% | 8% | 13 h 30 min |
| May 23 | 92°F | 75°F | 16% | 8% | 13 h 30 min |
| May 24 | 92°F | 75°F | 16% | 8% | 13 h 30 min |
| May 25 | 92°F | 75°F | 16% | 8% | 13 h 30 min |
| May 26 | 92°F | 76°F | 16% | 8% | 13 h 30 min |
| May 27 | 92°F | 76°F | 16% | 9% | 13 h 30 min |
| May 28 | 93°F | 76°F | 16% | 9% | 13 h 40 min |
| May 29 | 93°F | 76°F | 16% | 9% | 13 h 40 min |
| May 30 | 93°F | 76°F | 17% | 9% | 13 h 40 min |
| May 31 | 93°F | 76°F | 17% | 9% | 13 h 40 min |
- Normal high
- 90°FMay average
- Normal low
- 74°FMay average
- Precipitation
- 2.22 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 16
- Daylight
- 13 h 10 min to 13 h 40 minMay 1 to May 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 85%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012919; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Brownsville in May?
On a given May day the chance of 0.01 inch or more is 15% on average, highest around May 31 (17%). In all, 2.22 in falls on 5 days of a normal May, 1 of them with an inch or more.
In a normal May in Brownsville, 16 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012919.
How humid and windy is Brownsville in May?
At 3 p.m. the normal temperature is 89°F with 58% relative humidity and a dew point of 72°F; at 6 a.m. it is 76°F with 92% humidity. The wind averages 11.2 mph, most often from the southeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 76°F | 74°F | 92% | 6.7 mph | 69% |
| 9 a.m. | 84°F | 73°F | 69% | 13.0 mph | 41% |
| noon | 89°F | 72°F | 58% | 14.5 mph | 37% |
| 3 p.m. | 89°F | 72°F | 58% | 15.5 mph | 62% |
| 6 p.m. | 85°F | 73°F | 68% | 14.7 mph | 69% |
| 9 p.m. | 79°F | 74°F | 84% | 9.5 mph | 75% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00012919. 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 Brownsville?
The warmest May temperature on Brownsville's official record (since 1878) is 104°F, on May 9, 2024; the coldest is 41°F, on May 12, 1895. The wettest May brought 9.72 in (2015).
The May mean against the 1991-2020 normal of 82.0°F: 2021 80.3°F (−1.7), 2022 83.8°F (+1.8), 2023 81.7°F (−0.3), 2024 87.4°F (+5.4), 2025 83.9°F (+1.9), 2026 82.4°F (+0.4). 4 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.3°F | −1.7°F | 4.96 in |
| 2022 | 83.8°F | +1.8°F | 5.14 in |
| 2023 | 81.7°F | −0.3°F | 5.53 in |
| 2024 | 87.4°F | +5.4°F | 0.76 in |
| 2025 | 83.9°F | +1.9°F | 5.13 in |
| 2026 | 82.4°F | +0.4°F | 3.51 in |
Source: records: ACIS, NWS threaded record BROthr; recent months: ACIS, station USW00012919. Records and recent months use complete months only.
How does May in Brownsville 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; Brownsville's is 90°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.