Guadalupe County Weather in May
Average highs run from 84°F on May 1 to 91°F on May 31, and lows from 62°F to 69°F. Normal precipitation for the month is 3.63 in over about 8 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
- 88°F
- Average low
- 66°F
- Precipitation
- 3.63 in
- Record high
- 103°FMay 25, 2024
- Record low
- 39°FMay 4, 2013
- Chance of a freeze
- 0%
- Days of 90°F or more
- 12.8
- Daylight
- 13 h 20 min to 13 h 55 min
- Cloud cover
- 60%
- Humidity
- 71%
- Dew point
- 65°F
- Wind
- 10.1 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 | 84°F | 62°F | 95°F 1998 | 45°F 2005 | 22% |
| May 2 | 84°F | 62°F | 96°F 2020 | 47°F 2011 | 22% |
| May 3 | 85°F | 62°F | 97°F 2020 | 42°F 2013 | 22% |
| May 4 | 85°F | 62°F | 98°F 2020 | 39°F 2013 | 22% |
| May 5 | 85°F | 63°F | 94°F 2012 | 46°F 2013 | 22% |
| May 6 | 85°F | 63°F | 97°F 2009 | 45°F 2013 | 22% |
| May 7 | 86°F | 63°F | 99°F 1998 | 48°F 2013 | 23% |
| May 8 | 86°F | 63°F | 100°F 2009 | 52°F 2008 | 23% |
| May 9 | 86°F | 64°F | 97°F 2011 | 58°F 1997 | 23% |
| May 10 | 86°F | 64°F | 95°F 2006 | 54°F 2020 | 23% |
| May 11 | 86°F | 64°F | 96°F 2009 | 51°F 1997 | 23% |
| May 12 | 87°F | 64°F | 97°F 2009 | 50°F 2025 | 23% |
| May 13 | 87°F | 65°F | 101°F 2025 | 50°F 2013 | 23% |
| May 14 | 87°F | 65°F | 101°F 2025 | 49°F 2014 | 23% |
| May 15 | 87°F | 65°F | 99°F 2025 | 44°F 2014 | 23% |
| May 16 | 88°F | 66°F | 97°F 2003 | 52°F 2006 | 23% |
| May 17 | 88°F | 66°F | 99°F 2022 | 54°F 2006 | 23% |
| May 18 | 88°F | 66°F | 100°F 2022 | 53°F 2008 | 23% |
| May 19 | 88°F | 66°F | 98°F 2006 | 52°F 2002 | 23% |
| May 20 | 89°F | 67°F | 100°F 2025 | 48°F 2002 | 23% |
| May 21 | 89°F | 67°F | 100°F 2022 | 52°F 2002 | 23% |
| May 22 | 89°F | 67°F | 99°F 2025 | 52°F 2001 | 23% |
| May 23 | 89°F | 67°F | 98°F 2008 | 51°F 2001 | 23% |
| May 24 | 90°F | 68°F | 101°F 2024 | 51°F 2017 | 23% |
| May 25 | 90°F | 68°F | 103°F 2024 | 58°F 2017 | 23% |
| May 26 | 90°F | 68°F | 98°F 2024 | 57°F 2022 | 23% |
| May 27 | 90°F | 68°F | 101°F 2011 | 63°F 1999 | 23% |
| May 28 | 91°F | 69°F | 100°F 2011 | 61°F 2026 | 23% |
| May 29 | 91°F | 69°F | 98°F 2003 | 59°F 2003 | 23% |
| May 30 | 91°F | 69°F | 99°F 2011 | 63°F 2002 | 22% |
| May 31 | 91°F | 69°F | 99°F 1998 | 64°F 2002 | 22% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:49 AM, sunset 8:09 PM
- May 31
- sunrise 6:32 AM, sunset 8:27 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00012971 (Austin San Antonio), public domain. Records: NOAA GHCN-Daily, station USW00012971, 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.