Weather on April 21
Norman, OK
55 Years of Data
Avg High
73°F
Avg Low
51°F
Warmest
1973
76°F avg
Coldest
2021
44°F avg
About This Date
April 21st in Norman, OK typically brings pleasant spring weather, with average highs around 73°F and lows near 51°F. Over 55 years of records, the warmest April 21st was in 1973 (76°F average), while the coldest was 2021 (44°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 27% of April 21st dates historically, with the wettest April 21st recording 4.32" of rain. The last decade has been 4.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.7°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Norman, OK? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 43° | 60° | — | — |
| 2024 | 63° | 42° | 52° | — | — |
| 2023 | 69° | 47° | 58° | — | — |
| 2022 | 83° | 68° | 75° | — | — |
| 2021coldest | 59° | 29° | 44° | — | — |
| 2020 | 82° | 48° | 65° | 2.74" | — |
| 2019 | 81° | 59° | 70° | — | — |
| 2018 | 57° | 48° | 53° | 4.32" | — |
| 2017 | 63° | 49° | 56° | 2.95" | — |
| 2016 | 72° | 52° | 62° | — | — |
| 2015 | 73° | 51° | 62° | — | — |
| 2014 | 76° | 53° | 64° | 0.46" | — |
| 2013 | 69° | 52° | 60° | — | — |
| 2012 | 72° | 41° | 56° | — | — |
| 2011 | 66° | 50° | 58° | — | — |
| 2010 | 76° | 54° | 65° | — | — |
| 2009 | 79° | 45° | 62° | — | — |
| 2008 | 77° | 59° | 68° | — | — |
| 2007 | 78° | 58° | 68° | — | — |
| 2006 | 82° | 55° | 69° | — | — |
| 2005 | 84° | 52° | 68° | — | — |
| 2004 | 81° | 51° | 66° | 0.13" | — |
| 2003 | 73° | 43° | 58° | — | — |
| 2002 | 71° | 51° | 61° | 0.03" | — |
| 2001 | 75° | 67° | 71° | — | — |
| 2000 | 71° | 40° | 55° | — | — |
| 1999 | 79° | 64° | 71° | — | — |
| 1998 | 68° | 41° | 55° | — | — |
| 1997 | 81° | 55° | 68° | — | — |
| 1996 | 82° | 56° | 69° | 3.53" | — |
| 1995 | 69° | 46° | 58° | 0.03" | — |
| 1994 | 83° | 56° | 69° | — | — |
| 1993 | 63° | 39° | 51° | — | — |
| 1992 | 70° | 40° | 55° | — | — |
| 1991 | 56° | 49° | 52° | 0.08" | — |
| 1990 | 85° | 57° | 71° | — | — |
| 1989 | 87° | 56° | 71° | — | — |
| 1988 | 84° | 61° | 72° | — | — |
| 1987 | 64° | 52° | 58° | — | — |
| 1986 | 67° | 46° | 56° | — | — |
| 1985 | 80° | 61° | 70° | 0.41" | — |
| 1984 | 60° | 43° | 51° | — | — |
| 1983 | 57° | 47° | 52° | 0.18" | — |
| 1982 | 61° | 42° | 51° | — | — |
| 1981 | 67° | 55° | 61° | — | — |
| 1980 | 83° | 50° | 66° | — | — |
| 1979 | 71° | 52° | 61° | — | — |
| 1978 | 69° | 41° | 55° | — | — |
| 1977 | 59° | 51° | 55° | 0.2" | — |
| 1976 | 75° | 40° | 57° | — | — |
| 1975 | 77° | 46° | 62° | — | — |
| 1974 | 79° | 64° | 71° | 0.03" | — |
| 1973warmest | 82° | 70° | 76° | — | — |
| 1972 | 74° | 49° | 61° | 2.03" | — |
| 1971 | 85° | 51° | 68° | 0.15" | — |
55 years of data from NORMAN 2NW MESONET