Weather on April 21
Richardson, TX
55 Years of Data
Avg High
77°F
Avg Low
57°F
Warmest
1996
77°F avg
Coldest
2021
48°F avg
About This Date
April 21st in Richardson, TX typically brings pleasant spring weather, with average highs around 77°F and lows near 57°F. Over 55 years of records, the warmest April 21st was in 1996 (77°F average), while the coldest was 2021 (48°F) — a 29°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 3.1" of rain. The last decade has been 5.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.7°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Richardson, TX? Great weather for outdoor activities.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 56° | 69° | — | — |
| 2024 | 64° | 49° | 56° | — | — |
| 2023 | 75° | 55° | 65° | — | — |
| 2022 | 82° | 70° | 76° | — | — |
| 2021coldest | 61° | 35° | 48° | — | — |
| 2020 | 82° | 59° | 71° | — | — |
| 2019 | 81° | 58° | 69° | — | — |
| 2018 | 63° | 52° | 57° | 0.03" | — |
| 2017 | 82° | 59° | 71° | 1.93" | — |
| 2016 | 77° | 58° | 67° | 0.51" | — |
| 2015 | 71° | 48° | 60° | — | — |
| 2014 | 80° | 54° | 67° | 1.45" | — |
| 2013 | 71° | 47° | 59° | — | — |
| 2012 | 74° | 46° | 60° | — | — |
| 2011 | 84° | 57° | 71° | 0.15" | — |
| 2010 | 78° | 52° | 65° | — | — |
| 2009 | 86° | 52° | 69° | — | — |
| 2008 | 83° | 68° | 75° | — | — |
| 2007 | 78° | 62° | 70° | — | — |
| 2006 | 79° | 60° | 69° | 0.08" | — |
| 2005 | 81° | 69° | 75° | — | — |
| 2004 | 84° | 68° | 76° | — | — |
| 2003 | 80° | 52° | 66° | — | — |
| 2002 | 77° | 65° | 71° | — | — |
| 2001 | 77° | 68° | 73° | — | — |
| 2000 | 75° | 54° | 64° | — | — |
| 1999 | 78° | 66° | 72° | — | — |
| 1998 | 71° | 47° | 59° | — | — |
| 1997 | 86° | 59° | 73° | — | — |
| 1996warmest | 89° | 65° | 77° | — | — |
| 1995 | 84° | 55° | 70° | — | — |
| 1994 | 83° | 64° | 73° | 0.38" | — |
| 1993 | 69° | 45° | 57° | — | — |
| 1992 | 73° | 49° | 61° | 0.05" | — |
| 1991 | 63° | 54° | 58° | — | — |
| 1990 | 69° | 63° | 66° | 0.94" | — |
| 1989 | 80° | 54° | 67° | — | — |
| 1988 | 85° | 62° | 73° | — | — |
| 1987 | 72° | 57° | 64° | — | — |
| 1986 | 70° | 58° | 64° | — | — |
| 1985 | 84° | 66° | 75° | — | — |
| 1984 | 75° | 59° | 67° | — | — |
| 1983 | 70° | 48° | 59° | — | — |
| 1982 | 62° | 49° | 55° | 0.2" | — |
| 1981 | 86° | 65° | 75° | — | — |
| 1980 | 86° | 54° | 70° | — | — |
| 1979 | 72° | 60° | 66° | — | — |
| 1978 | 76° | 49° | 62° | — | — |
| 1977 | 72° | 58° | 65° | — | — |
| 1976 | 77° | 47° | 62° | — | — |
| 1975 | 80° | 54° | 67° | — | — |
| 1974 | 78° | 62° | 70° | 3.1" | — |
| 1973 | 78° | 73° | 76° | 0.25" | — |
| 1972 | 76° | 58° | 67° | 0.53" | — |
| 1971 | 85° | 53° | 69° | — | — |
55 years of data from RICHARDSON