Alamo Weather in May
Average highs run from 78°F on May 1 to 90°F on May 31, and lows from 46°F to 55°F. Normal precipitation for the month is 0.34 in over about 2 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
- 83°F
- Average low
- 50°F
- Precipitation
- 0.34 in
- Record high
- 86°FMay 30, 1988
- Record low
- 16°FMay 14, 1998
- Chance of a freeze
- 4%
- Days of 90°F or more
- 7.9
- Daylight
- 13 h 46 min to 14 h 33 min
- Cloud cover
- 41%
- Humidity
- 32%
- Dew point
- 28°F
- Wind
- 8.9 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 | 78°F | 46°F | 75°F 1981 | 19°F 2003 | 8% | 0% |
| May 2 | 78°F | 46°F | 79°F 1981 | 19°F 2003 | 7% | 0% |
| May 3 | 78°F | 47°F | 77°F 1985 | 19°F 1995 | 7% | 0% |
| May 4 | 79°F | 47°F | 78°F 1989 | 20°F 1950 | 7% | 0% |
| May 5 | 79°F | 47°F | 78°F 1989 | 19°F 1993 | 7% | 0% |
| May 6 | 79°F | 47°F | 79°F 1989 | 17°F 1995 | 7% | 0% |
| May 7 | 80°F | 48°F | 79°F 1989 | 17°F 1995 | 7% | 0% |
| May 8 | 80°F | 48°F | 81°F 1989 | 17°F 1988 | 7% | 0% |
| May 9 | 80°F | 48°F | 82°F 1989 | 18°F 2003 | 7% | 0% |
| May 10 | 81°F | 49°F | 79°F 2018 | 18°F 1991 | 7% | 0% |
| May 11 | 81°F | 49°F | 80°F 1984 | 17°F 1991 | 7% | 0% |
| May 12 | 82°F | 49°F | 82°F 1988 | 18°F 1991 | 7% | 0% |
| May 13 | 82°F | 50°F | 82°F 1996 | 18°F 1995 | 7% | 0% |
| May 14 | 82°F | 50°F | 79°F 1984 | 16°F 1998 | 7% | 0% |
| May 15 | 83°F | 50°F | 85°F 1988 | 24°F 1991 | 7% | 0% |
| May 16 | 83°F | 51°F | 80°F 1988 | 16°F 1995 | 6% | 0% |
| May 17 | 84°F | 51°F | 77°F 2022 | 18°F 1994 | 6% | 0% |
| May 18 | 84°F | 51°F | 78°F 2009 | 20°F 1994 | 6% | 0% |
| May 19 | 84°F | 51°F | 80°F 2008 | 19°F 1994 | 6% | 0% |
| May 20 | 85°F | 52°F | 82°F 2008 | 17°F 1994 | 6% | 0% |
| May 21 | 85°F | 52°F | 81°F 1984 | 21°F 1994 | 6% | 0% |
| May 22 | 86°F | 52°F | 79°F 1984 | 21°F 1996 | 6% | 0% |
| May 23 | 86°F | 53°F | 85°F 1984 | 19°F 1996 | 6% | 0% |
| May 24 | 87°F | 53°F | 84°F 1984 | 17°F 1996 | 6% | 0% |
| May 25 | 87°F | 53°F | 83°F 1984 | 21°F 1995 | 6% | 0% |
| May 26 | 87°F | 53°F | 82°F 1984 | 24°F 1987 | 6% | 0% |
| May 27 | 88°F | 54°F | 85°F 1984 | 24°F 2019 | 6% | 0% |
| May 28 | 88°F | 54°F | 84°F 1986 | 23°F 1995 | 5% | 0% |
| May 29 | 89°F | 54°F | 85°F 1984 | 22°F 1995 | 5% | 0% |
| May 30 | 89°F | 54°F | 86°F 1988 | 23°F 1988 | 5% | 0% |
| May 31 | 90°F | 55°F | 82°F 1983 | 25°F 1996 | 5% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:45 AM, sunset 7:31 PM
- May 31
- sunrise 5:22 AM, sunset 7:55 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00265880 (Pahranagat Wr), public domain. Records: NOAA GHCN-Daily, station USC00265400, 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.