Weather on May 21
Las Vegas, NV
55 Years of Data
Avg High
91°F
Avg Low
61°F
Warmest
2001
88°F avg
Coldest
1975
55°F avg
About This Date
May 21st in Las Vegas, NV typically brings hot spring weather, with average highs around 91°F and lows near 61°F — a 30°F daily swing. Over 55 years of records, the warmest May 21st was in 2001 (88°F average), while the coldest was 1975 (55°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 21st dates historically. The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
Planning for May 21st in Las Vegas, NV? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 67° | 82° | — | — |
| 2024 | 85° | 68° | 76° | — | — |
| 2023 | 95° | 72° | 83° | — | — |
| 2022 | 85° | 61° | 73° | — | — |
| 2021 | 69° | 55° | 62° | — | — |
| 2020 | 87° | 65° | 76° | — | — |
| 2019 | 75° | 55° | 65° | — | — |
| 2018 | 85° | 73° | 79° | 0.03" | — |
| 2017 | 96° | 63° | 79° | — | — |
| 2016 | 95° | 59° | 77° | — | — |
| 2015 | 85° | 63° | 74° | — | — |
| 2014 | 79° | 57° | 68° | — | — |
| 2013 | 89° | 64° | 77° | — | — |
| 2012 | 100° | 69° | 85° | — | — |
| 2011 | 80° | 60° | 70° | — | — |
| 2010 | 93° | 65° | 79° | — | — |
| 2009 | 98° | 72° | 85° | — | — |
| 2008 | 82° | 62° | 72° | — | — |
| 2007 | 98° | 72° | 85° | — | — |
| 2006 | 98° | 73° | 86° | — | — |
| 2005 | 101° | 71° | 86° | — | — |
| 2004 | 88° | 62° | 75° | — | — |
| 2003 | 98° | 68° | 83° | — | — |
| 2002 | 80° | 54° | 67° | — | — |
| 2001warmest | 102° | 74° | 88° | — | — |
| 2000 | 97° | 67° | 82° | — | — |
| 1999 | 93° | 63° | 78° | — | — |
| 1998 | 87° | 60° | 74° | — | — |
| 1997 | 94° | 66° | 80° | — | — |
| 1996 | 94° | 64° | 79° | — | — |
| 1995 | 92° | 65° | 78° | — | — |
| 1994 | 82° | 56° | 69° | — | — |
| 1993 | 95° | 63° | 79° | — | — |
| 1992 | 89° | 67° | 78° | — | — |
| 1991 | 86° | 57° | 72° | — | — |
| 1990 | 87° | 59° | 73° | — | — |
| 1989 | 99° | 74° | 86° | — | — |
| 1988 | 92° | 53° | 72° | — | — |
| 1987 | 83° | 57° | 70° | — | — |
| 1986 | 98° | 69° | 84° | — | — |
| 1985 | 97° | 66° | 81° | — | — |
| 1984 | 100° | 74° | 87° | — | — |
| 1983 | 101° | 49° | 75° | — | — |
| 1982 | 97° | 52° | 74° | — | — |
| 1981 | 89° | 51° | 70° | — | — |
| 1980 | 98° | 54° | 76° | — | — |
| 1979 | 93° | 62° | 78° | — | — |
| 1978 | 101° | 51° | 76° | — | — |
| 1977 | 93° | 44° | 69° | — | — |
| 1976 | 93° | 49° | 71° | — | — |
| 1975coldest | 74° | 36° | 55° | — | — |
| 1974 | 89° | 41° | 65° | — | — |
| 1973 | 93° | 63° | 78° | — | — |
| 1972 | 83° | 39° | 61° | — | — |
| 1971 | 74° | 46° | 60° | — | — |
55 years of data from SUNRISE MANOR LAS VEGA