Weather on April 21
Huntsville, AL
55 Years of Data
Avg High
74°F
Avg Low
49°F
Warmest
2017
73°F avg
Coldest
2019
47°F avg
About This Date
April 21st in Huntsville, AL typically brings pleasant spring weather, with average highs around 74°F and lows near 49°F — a 25°F daily swing. Over 26 years of records, the warmest April 21st was in 2017 (73°F average), while the coldest was 2019 (47°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 31% of April 21st dates historically, with the wettest April 21st recording 4.17" of rain.
Planning for April 21st in Huntsville, AL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 62° | 72° | — | — |
| 2024 | 64° | 49° | 56° | — | — |
| 2023 | 83° | 55° | 69° | — | — |
| 2022 | 71° | 45° | 58° | 0.03" | — |
| 2021 | 71° | 38° | 54° | — | — |
| 2020 | 69° | 48° | 59° | — | — |
| 2019coldest | 57° | 37° | 47° | 0.08" | — |
| 2018 | 75° | 39° | 57° | — | — |
| 2017warmest | 85° | 61° | 73° | — | — |
| 2016 | 72° | 60° | 66° | — | — |
| 2015 | 68° | 41° | 55° | — | — |
| 2014 | 79° | 49° | 64° | — | — |
| 2013 | 69° | 41° | 55° | — | — |
| 2012 | 75° | 54° | 64° | — | — |
| 2011 | 75° | 63° | 69° | 4.17" | — |
| 2010 | 72° | 41° | 56° | 0.05" | — |
| 2009 | 67° | 45° | 56° | 0.08" | — |
| 2008 | 72° | 44° | 58° | — | — |
| 2007 | 73° | 41° | 57° | — | — |
| 2006 | 81° | 60° | 70° | 1.17" | — |
| 2005 | 80° | 47° | 63° | — | — |
| 1975 | 75° | 38° | 56° | — | — |
| 1974 | 78° | 46° | 62° | — | — |
| 1973 | 81° | 59° | 70° | — | — |
| 1972 | 78° | 62° | 70° | 0.76" | — |
| 1971 | 75° | 57° | 66° | 2.03" | — |
26 years of data from REDSTONE ARSENAL