Weather on May 20
Norman, OK
55 Years of Data
Avg High
80°F
Avg Low
60°F
Warmest
1996
81°F avg
Coldest
1981
57°F avg
About This Date
May 20th 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 20th was in 1996 (81°F average), while the coldest was 1981 (57°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 36% of May 20th dates historically, with the wettest May 20th recording 6.96" of rain. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in Norman, OK? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 60° | 70° | — | — |
| 2024 | 88° | 67° | 77° | — | — |
| 2023 | 72° | 53° | 62° | — | — |
| 2022 | 85° | 70° | 77° | — | — |
| 2021 | 74° | 65° | 69° | — | — |
| 2020 | 80° | 56° | 68° | — | — |
| 2019 | 80° | 60° | 70° | 2.77" | — |
| 2018 | 74° | 61° | 67° | 1.5" | — |
| 2017 | 72° | 52° | 62° | 0.08" | — |
| 2016 | 75° | 56° | 65° | — | — |
| 2015 | 67° | 54° | 60° | 0.23" | — |
| 2014 | 90° | 67° | 78° | — | — |
| 2013 | 83° | 66° | 74° | 0.03" | — |
| 2012 | 73° | 59° | 66° | 1.12" | — |
| 2011 | 71° | 60° | 66° | 6.17" | — |
| 2010 | 77° | 58° | 67° | — | — |
| 2009 | 78° | 56° | 67° | — | — |
| 2008 | 96° | 61° | 78° | — | — |
| 2007 | 71° | 59° | 65° | — | — |
| 2006 | 94° | 68° | 81° | — | — |
| 2005 | 94° | 67° | 80° | — | — |
| 2004 | 89° | 70° | 79° | — | — |
| 2003 | 64° | 53° | 59° | 2.95" | — |
| 2002 | 74° | 53° | 63° | — | — |
| 2001 | 84° | 61° | 72° | 0.66" | — |
| 2000 | 77° | 49° | 63° | — | — |
| 1999 | 81° | 61° | 71° | — | — |
| 1998 | 89° | 62° | 76° | 0.13" | — |
| 1997 | 74° | 55° | 64° | — | — |
| 1996warmest | 91° | 72° | 81° | — | — |
| 1995 | 80° | 50° | 65° | — | — |
| 1994 | 79° | 53° | 66° | — | — |
| 1993 | 68° | 52° | 60° | — | — |
| 1992 | 79° | 65° | 72° | 1.17" | — |
| 1991 | 81° | 66° | 73° | 0.61" | — |
| 1990 | 94° | 64° | 79° | — | — |
| 1989 | 82° | 68° | 75° | — | — |
| 1988 | 81° | 64° | 72° | — | — |
| 1987 | 87° | 64° | 76° | 0.1" | — |
| 1986 | 77° | 56° | 66° | — | — |
| 1985 | 75° | 60° | 68° | — | — |
| 1984 | 72° | 61° | 66° | — | — |
| 1983 | 75° | 57° | 66° | 1.7" | — |
| 1982 | 83° | 59° | 71° | 1.91" | — |
| 1981coldest | 72° | 43° | 57° | — | — |
| 1980 | 65° | 56° | 60° | 1.02" | — |
| 1979 | 84° | 64° | 74° | 6.96" | — |
| 1978 | 81° | 63° | 72° | 6.53" | — |
| 1977 | 73° | 62° | 68° | 4.9" | — |
| 1976 | 82° | 56° | 69° | — | — |
| 1975 | 85° | 60° | 72° | 0.91" | — |
| 1974 | 88° | 69° | 78° | — | — |
| 1973 | 96° | 61° | 78° | — | — |
| 1972 | 85° | 60° | 72° | — | — |
| 1971 | 82° | 46° | 64° | — | — |
55 years of data from NORMAN 2NW MESONET