Weather on April 21
Oklahoma City, OK
55 Years of Data
Avg High
74°F
Avg Low
51°F
Warmest
2008
77°F avg
Coldest
2021
45°F avg
About This Date
April 21st in Oklahoma City, OK typically brings pleasant spring weather, with average highs around 74°F and lows near 51°F. Over 38 years of records, the warmest April 21st was in 2008 (77°F average), while the coldest was 2021 (45°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 24% of April 21st dates historically, with the wettest April 21st recording 6.22" of rain. The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Oklahoma City, OK? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 42° | 60° | — | — |
| 2024 | 64° | 41° | 53° | — | — |
| 2023 | 71° | 44° | 58° | — | — |
| 2022 | 79° | 71° | 75° | — | — |
| 2021coldest | 61° | 29° | 45° | — | — |
| 2020 | 83° | 49° | 66° | 0.33" | — |
| 2019 | 82° | 60° | 71° | — | — |
| 2018 | 58° | 47° | 52° | 4.17" | — |
| 2017 | 64° | 48° | 56° | 6.22" | — |
| 2016 | 73° | 48° | 61° | — | — |
| 2015 | 74° | 51° | 62° | — | — |
| 2014 | 79° | 53° | 66° | 0.1" | — |
| 2013 | 69° | 53° | 61° | — | — |
| 2012 | 73° | 40° | 56° | — | — |
| 2011 | 67° | 52° | 59° | — | — |
| 2010 | 76° | 56° | 66° | — | — |
| 2009 | 79° | 46° | 62° | — | — |
| 2008warmest | 87° | 67° | 77° | — | — |
| 2007 | 78° | 59° | 69° | — | — |
| 2006 | 82° | 54° | 68° | — | — |
| 2005 | 82° | 53° | 68° | — | — |
| 2004 | 79° | 51° | 65° | 0.91" | — |
| 2003 | 72° | 43° | 57° | — | — |
| 2002 | 66° | 50° | 58° | — | — |
| 2001 | 75° | 68° | 72° | — | — |
| 2000 | 69° | 39° | 54° | — | — |
| 1999 | 79° | 64° | 71° | — | — |
| 1998 | 68° | 39° | 54° | — | — |
| 1997 | 79° | 51° | 65° | — | — |
| 1979 | 69° | 54° | 61° | 2.79" | — |
| 1978 | 61° | 43° | 52° | — | — |
| 1977 | 76° | 51° | 63° | 3.2" | — |
| 1976 | 61° | 46° | 53° | — | — |
| 1975 | 75° | 41° | 58° | — | — |
| 1974 | 78° | 69° | 74° | 3.05" | — |
| 1973 | 82° | 70° | 76° | — | — |
| 1972 | 70° | 50° | 60° | 0.76" | — |
| 1971 | 84° | 52° | 68° | — | — |
38 years of data from OKLAHOMA CITY PENN AVE