Weather on May 21
Norman, OK
55 Years of Data
Avg High
80°F
Avg Low
60°F
Warmest
2005
83°F avg
Coldest
2001
57°F avg
About This Date
May 21st in Norman, OK typically brings warm spring weather, with average highs around 80°F and lows near 60°F. Over 55 years of records, the warmest May 21st was in 2005 (83°F average), while the coldest was 2001 (57°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 27% of May 21st dates historically, with the wettest May 21st recording 4.83" of rain. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for May 21st in Norman, OK? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 53° | 70° | — | — |
| 2024 | 90° | 72° | 81° | — | — |
| 2023 | 75° | 52° | 63° | — | — |
| 2022 | 70° | 55° | 62° | — | — |
| 2021 | 81° | 66° | 73° | — | — |
| 2020 | 77° | 67° | 72° | — | — |
| 2019 | 75° | 62° | 69° | 4.83" | — |
| 2018 | 82° | 58° | 70° | 0.03" | — |
| 2017 | 75° | 47° | 61° | — | — |
| 2016 | 81° | 62° | 71° | — | — |
| 2015 | 67° | 50° | 58° | — | — |
| 2014 | 89° | 69° | 79° | — | — |
| 2013 | 67° | 56° | 61° | 1.3" | — |
| 2012 | 80° | 58° | 69° | 0.15" | — |
| 2011 | 89° | 60° | 75° | 0.03" | — |
| 2010 | 82° | 55° | 69° | — | — |
| 2009 | 81° | 57° | 69° | — | — |
| 2008 | 82° | 57° | 70° | — | — |
| 2007 | 80° | 60° | 70° | — | — |
| 2006 | 91° | 70° | 80° | — | — |
| 2005warmest | 96° | 70° | 83° | — | — |
| 2004 | 84° | 69° | 77° | — | — |
| 2003 | 65° | 52° | 58° | 0.58" | — |
| 2002 | 77° | 53° | 65° | — | — |
| 2001coldest | 67° | 48° | 57° | 0.13" | — |
| 2000 | 87° | 60° | 74° | 0.1" | — |
| 1999 | 83° | 66° | 74° | — | — |
| 1998 | 89° | 66° | 78° | — | — |
| 1997 | 74° | 61° | 67° | — | — |
| 1996 | 84° | 66° | 75° | — | — |
| 1995 | 82° | 60° | 71° | 0.18" | — |
| 1994 | 80° | 50° | 65° | — | — |
| 1993 | 75° | 56° | 65° | — | — |
| 1992 | 80° | 65° | 72° | — | — |
| 1991 | 83° | 69° | 76° | — | — |
| 1990 | 77° | 59° | 68° | — | — |
| 1989 | 88° | 68° | 78° | — | — |
| 1988 | 80° | 58° | 69° | — | — |
| 1987 | 91° | 63° | 77° | 4.06" | — |
| 1986 | 83° | 59° | 71° | — | — |
| 1985 | 69° | 59° | 64° | — | — |
| 1984 | 83° | 60° | 71° | — | — |
| 1983 | 67° | 54° | 60° | 0.36" | — |
| 1982 | 79° | 62° | 70° | — | — |
| 1981 | 78° | 49° | 63° | — | — |
| 1980 | 74° | 59° | 66° | 0.64" | — |
| 1979 | 65° | 60° | 62° | 1.5" | — |
| 1978 | 77° | 66° | 72° | 2.31" | — |
| 1977 | 75° | 58° | 66° | 0.2" | — |
| 1976 | 85° | 61° | 73° | — | — |
| 1975 | 86° | 64° | 75° | — | — |
| 1974 | 85° | 65° | 75° | — | — |
| 1973 | 92° | 67° | 79° | — | — |
| 1972 | 88° | 59° | 73° | — | — |
| 1971 | 83° | 55° | 69° | — | — |
55 years of data from NORMAN 2NW MESONET