Los Alamos County Weather in May
Average highs run from 65°F on May 1 to 76°F on May 31, and lows from 39°F to 49°F. Normal precipitation for the month is 1.17 in over about 7 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
- 70°F
- Average low
- 44°F
- Precipitation
- 1.17 in
- Snowfall
- 0.1 in
- Record high
- 93°FMay 10, 1934
- Record low
- 22°FMay 3, 2013
- Chance of a freeze
- 57%
- Daylight
- 13 h 39 min to 14 h 25 min
- Cloud cover
- 47%
- Humidity
- 43%
- Dew point
- 27°F
- Wind
- 7.8 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 | 65°F | 39°F | 80°F 2020 | 24°F 1976 | 18% | 2% |
| May 2 | 65°F | 39°F | 79°F 2020 | 25°F 1967 | 19% | 2% |
| May 3 | 65°F | 40°F | 78°F 1940 | 22°F 2013 | 19% | 2% |
| May 4 | 66°F | 40°F | 83°F 2000 | 25°F 1935 | 19% | 2% |
| May 5 | 66°F | 40°F | 80°F 1952 | 28°F 1991 | 19% | 2% |
| May 6 | 66°F | 41°F | 84°F 1952 | 24°F 1935 | 19% | 2% |
| May 7 | 67°F | 41°F | 81°F 1989 | 24°F 1978 | 19% | 2% |
| May 8 | 67°F | 41°F | 83°F 1989 | 25°F 1936 | 19% | 2% |
| May 9 | 67°F | 42°F | 81°F 1934 | 24°F 1938 | 20% | 1% |
| May 10 | 68°F | 42°F | 93°F 1934 | 28°F 1979 | 20% | 1% |
| May 11 | 68°F | 42°F | 82°F 1984 | 27°F 1931 | 20% | 1% |
| May 12 | 68°F | 43°F | 84°F 1996 | 25°F 2014 | 20% | 1% |
| May 13 | 69°F | 43°F | 87°F 1941 | 25°F 1933 | 20% | 1% |
| May 14 | 69°F | 44°F | 82°F 1952 | 25°F 2014 | 20% | 1% |
| May 15 | 70°F | 44°F | 83°F 1952 | 27°F 1933 | 21% | 1% |
| May 16 | 70°F | 44°F | 89°F 1936 | 29°F 1957 | 21% | 1% |
| May 17 | 71°F | 45°F | 87°F 1937 | 30°F 1983 | 21% | 1% |
| May 18 | 71°F | 45°F | 84°F 2020 | 28°F 1983 | 21% | 1% |
| May 19 | 71°F | 45°F | 84°F 1996 | 31°F 1930 | 21% | 1% |
| May 20 | 72°F | 46°F | 85°F 2005 | 27°F 1960 | 21% | 1% |
| May 21 | 72°F | 46°F | 86°F 2005 | 30°F 2019 | 21% | 0% |
| May 22 | 73°F | 46°F | 87°F 2005 | 33°F 1931 | 22% | 0% |
| May 23 | 73°F | 47°F | 88°F 2000 | 29°F 1930 | 22% | 0% |
| May 24 | 73°F | 47°F | 88°F 2000 | 32°F 1919 | 22% | 0% |
| May 25 | 74°F | 47°F | 84°F 2018 | 30°F 1980 | 22% | 0% |
| May 26 | 74°F | 48°F | 83°F 2022 | 33°F 1965 | 22% | 0% |
| May 27 | 75°F | 48°F | 88°F 1951 | 33°F 1996 | 22% | 0% |
| May 28 | 75°F | 48°F | 88°F 1951 | 32°F 2019 | 22% | 0% |
| May 29 | 76°F | 49°F | 90°F 2000 | 32°F 1929 | 22% | 0% |
| May 30 | 76°F | 49°F | 88°F 2000 | 31°F 1995 | 22% | 0% |
| May 31 | 76°F | 49°F | 92°F 2002 | 30°F 1934 | 22% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:13 AM, sunset 7:52 PM
- May 31
- sunrise 5:51 AM, sunset 8:16 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00295084 (Los Alamos), public domain. Records: NOAA GHCN-Daily, station USC00295084, 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.