Karnes County Weather in May
Average highs run from 85°F on May 1 to 91°F on May 31, and lows from 63°F to 70°F.
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
- Record high
- 107°FMay 11, 2006
- Record low
- 42°FMay 1, 1908
- Chance of a freeze
- 0%
- Days of 90°F or more
- 14.0
- Daylight
- 13 h 17 min to 13 h 52 min
- Cloud cover
- 60%
- Humidity
- 69%
- Dew point
- 65°F
- Wind
- 10.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 85°F | 63°F | 98°F 1929 | 42°F 1908 | 0% | |
| May 2 | 85°F | 63°F | 95°F 1953 | 47°F 1903 | 0% | |
| May 3 | 85°F | 63°F | 99°F 1964 | 46°F 1929 | 0% | |
| May 4 | 85°F | 64°F | 101°F 1984 | 42°F 1935 | 0% | |
| May 5 | 85°F | 64°F | 97°F 1933 | 46°F 1954 | 0% | |
| May 6 | 85°F | 64°F | 101°F 1934 | 48°F 2013 | 0% | |
| May 7 | 86°F | 64°F | 97°F 1933 | 47°F 1917 | 0% | |
| May 8 | 86°F | 65°F | 101°F 1927 | 48°F 1917 | 0% | |
| May 9 | 86°F | 65°F | 101°F 1967 | 46°F 1984 | 0% | |
| May 10 | 86°F | 65°F | 99°F 1998 | 47°F 1984 | 0% | |
| May 11 | 86°F | 65°F | 107°F 2006 | 50°F 1981 | 0% | |
| May 12 | 87°F | 66°F | 98°F 1945 | 49°F 1960 | 0% | |
| May 13 | 87°F | 66°F | 96°F 1967 | 50°F 1960 | 0% | |
| May 14 | 87°F | 66°F | 99°F 1923 | 53°F 1918 | 0% | |
| May 15 | 87°F | 66°F | 98°F 2025 | 50°F 2014 | 0% | |
| May 16 | 88°F | 66°F | 96°F 2025 | 49°F 1983 | 0% | |
| May 17 | 88°F | 67°F | 99°F 1991 | 53°F 1970 | 0% | |
| May 18 | 88°F | 67°F | 99°F 1939 | 55°F 1945 | 0% | |
| May 19 | 88°F | 67°F | 99°F 1939 | 53°F 1945 | 0% | |
| May 20 | 88°F | 67°F | 99°F 2006 | 53°F 1986 | 0% | |
| May 21 | 89°F | 68°F | 100°F 1939 | 54°F 1919 | 0% | |
| May 22 | 89°F | 68°F | 100°F 1939 | 56°F 1911 | 0% | |
| May 23 | 89°F | 68°F | 98°F 1916 | 58°F 1911 | 0% | |
| May 24 | 89°F | 68°F | 97°F 1916 | 54°F 2017 | 0% | |
| May 25 | 90°F | 68°F | 100°F 1955 | 58°F 1910 | 0% | |
| May 26 | 90°F | 69°F | 100°F 1989 | 52°F 1935 | 0% | |
| May 27 | 90°F | 69°F | 103°F 1928 | 58°F 1913 | 0% | |
| May 28 | 90°F | 69°F | 103°F 1927 | 53°F 1917 | 0% | |
| May 29 | 91°F | 69°F | 105°F 1916 | 58°F 1992 | 0% | |
| May 30 | 91°F | 69°F | 105°F 1916 | 53°F 1984 | 0% | |
| May 31 | 91°F | 70°F | 101°F 1916 | 49°F 1984 | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:50 AM, sunset 8:07 PM
- May 31
- sunrise 6:33 AM, sunset 8:25 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00414696 (Karnes City 2N), public domain. Records: NOAA GHCN-Daily, station USC00410639, 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.