Cotulla Weather in May
Average highs run from 89°F on May 1 to 96°F on May 31, and lows from 64°F to 72°F. Normal precipitation for the month is 3.01 in over about 6 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 93°F
- Average low
- 69°F
- Precipitation
- 3.01 in
- Record high
- 112°FMay 14, 2025
- Record low
- 44°FMay 3, 2011
- Chance of a freeze
- 0%
- Days of 90°F or more
- 22.2
- Daylight
- 13 h 16 min to 13 h 50 min
- Cloud cover
- 56%
- Humidity
- 65%
- Dew point
- 65°F
- Wind
- 11.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 89°F | 64°F | 109°F 2002 | 49°F 2005 | 17% |
| May 2 | 89°F | 65°F | 105°F 2002 | 48°F 2004 | 17% |
| May 3 | 90°F | 65°F | 108°F 2021 | 44°F 2011 | 18% |
| May 4 | 90°F | 65°F | 104°F 1950 | 45°F 2013 | 18% |
| May 5 | 90°F | 66°F | 103°F 1971 | 50°F 1970 | 18% |
| May 6 | 90°F | 66°F | 105°F 2009 | 51°F 1953 | 18% |
| May 7 | 91°F | 66°F | 107°F 2022 | 57°F 2013 | 18% |
| May 8 | 91°F | 66°F | 106°F 1967 | 56°F 2008 | 18% |
| May 9 | 91°F | 67°F | 103°F 1967 | 56°F 1973 | 19% |
| May 10 | 91°F | 67°F | 109°F 2006 | 56°F 1969 | 19% |
| May 11 | 92°F | 67°F | 103°F 1967 | 59°F 1952 | 19% |
| May 12 | 92°F | 68°F | 107°F 1967 | 50°F 1952 | 19% |
| May 13 | 92°F | 68°F | 110°F 2025 | 55°F 1953 | 19% |
| May 14 | 92°F | 68°F | 112°F 2025 | 52°F 1953 | 19% |
| May 15 | 93°F | 69°F | 104°F 2003 | 50°F 2014 | 19% |
| May 16 | 93°F | 69°F | 107°F 2013 | 50°F 1973 | 19% |
| May 17 | 93°F | 69°F | 107°F 2022 | 55°F 1970 | 19% |
| May 18 | 93°F | 69°F | 106°F 2022 | 57°F 1968 | 19% |
| May 19 | 94°F | 70°F | 107°F 2025 | 55°F 2009 | 19% |
| May 20 | 94°F | 70°F | 106°F 1973 | 54°F 1952 | 19% |
| May 21 | 94°F | 70°F | 106°F 2022 | 55°F 1978 | 19% |
| May 22 | 94°F | 70°F | 105°F 2024 | 57°F 1967 | 19% |
| May 23 | 95°F | 71°F | 107°F 2024 | 55°F 1967 | 19% |
| May 24 | 95°F | 71°F | 108°F 2024 | 56°F 2017 | 19% |
| May 25 | 95°F | 71°F | 106°F 2011 | 62°F 1967 | 19% |
| May 26 | 95°F | 71°F | 105°F 1973 | 62°F 1972 | 19% |
| May 27 | 96°F | 72°F | 107°F 2011 | 63°F 1976 | 19% |
| May 28 | 96°F | 72°F | 107°F 2011 | 62°F 1976 | 19% |
| May 29 | 96°F | 72°F | 103°F 2011 | 63°F 1973 | 18% |
| May 30 | 96°F | 72°F | 104°F 1979 | 63°F 1973 | 18% |
| May 31 | 96°F | 72°F | 106°F 2004 | 60°F 1975 | 18% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:56 AM, sunset 8:12 PM
- May 31
- sunrise 6:40 AM, sunset 8:30 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00012947 (Cotulla La Salle CO AP), public domain. Records: NOAA GHCN-Daily, station USW00012947, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.