Weather on March 21
Huntsville, AL
55 Years of Data
Avg High
66°F
Avg Low
39°F
Warmest
2012
69°F avg
Coldest
2025
36°F avg
About This Date
March 21st in Huntsville, AL typically brings mild spring weather, with average highs around 66°F and lows near 39°F — a 27°F daily swing. Over 27 years of records, the warmest March 21st was in 2012 (69°F average), while the coldest was 2025 (36°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 22% of March 21st dates historically, with the wettest March 21st recording 2.29" of rain.
Planning for March 21st in Huntsville, AL? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 79° | 48° | 63° | — | — |
| 2025coldest | 45° | 27° | 36° | — | — |
| 2024 | 73° | 47° | 60° | — | — |
| 2023 | 52° | 22° | 37° | — | — |
| 2022 | 69° | 34° | 51° | — | — |
| 2021 | 61° | 33° | 47° | — | — |
| 2020 | 72° | 49° | 60° | 2.29" | — |
| 2019 | 64° | 28° | 46° | 0.03" | — |
| 2018 | 53° | 33° | 43° | — | — |
| 2017 | 84° | 54° | 69° | — | — |
| 2016 | 56° | 33° | 44° | — | — |
| 2015 | 60° | 48° | 54° | — | — |
| 2014 | 69° | 31° | 50° | — | — |
| 2013 | 57° | 27° | 42° | — | — |
| 2012warmest | 83° | 56° | 69° | — | — |
| 2011 | 79° | 53° | 66° | — | — |
| 2010 | 70° | 47° | 58° | 0.23" | — |
| 2009 | 63° | 31° | 47° | — | — |
| 2008 | 62° | 33° | 48° | — | — |
| 2007 | 77° | 45° | 61° | — | — |
| 2006 | 63° | 33° | 48° | — | — |
| 2005 | 66° | 47° | 56° | — | — |
| 1975 | 77° | 41° | 59° | — | — |
| 1974 | 72° | 42° | 57° | 1.45" | — |
| 1973 | 63° | 39° | 51° | 0.18" | — |
| 1972 | 69° | 41° | 55° | 1.98" | — |
| 1971 | 57° | 25° | 41° | — | — |
27 years of data from REDSTONE ARSENAL