Weather on May 21
Huntsville, AL
55 Years of Data
Avg High
83°F
Avg Low
58°F
Warmest
2022
79°F avg
Coldest
2007
63°F avg
About This Date
May 21st in Huntsville, AL typically brings warm spring weather, with average highs around 83°F and lows near 58°F — a 25°F daily swing. Over 26 years of records, the warmest May 21st was in 2022 (79°F average), while the coldest was 2007 (63°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 23% of May 21st dates historically, with the wettest May 21st recording 5.61" of rain.
Planning for May 21st in Huntsville, AL? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 60° | 71° | — | — |
| 2024 | 85° | 64° | 74° | — | — |
| 2023 | 74° | 56° | 65° | 1.07" | — |
| 2022warmest | 88° | 70° | 79° | — | — |
| 2021 | 81° | 54° | 67° | — | — |
| 2020 | 73° | 54° | 63° | — | — |
| 2019 | 84° | 58° | 71° | — | — |
| 2018 | 82° | 66° | 74° | — | — |
| 2017 | 80° | 65° | 72° | — | — |
| 2016 | 77° | 60° | 69° | — | — |
| 2015 | 84° | 61° | 72° | 0.28" | — |
| 2014 | 86° | 59° | 73° | — | — |
| 2013 | 87° | 64° | 76° | 0.13" | — |
| 2012 | 87° | 59° | 73° | — | — |
| 2011 | 89° | 59° | 74° | — | — |
| 2010 | 81° | 57° | 69° | 2.62" | — |
| 2009 | 80° | 50° | 65° | — | — |
| 2008 | 85° | 53° | 69° | 0.53" | — |
| 2007coldest | 83° | 43° | 63° | — | — |
| 2006 | 86° | 61° | 73° | — | — |
| 2005 | 80° | 58° | 69° | 5.61" | — |
| 1975 | 90° | 64° | 77° | — | — |
| 1974 | 85° | 67° | 76° | — | — |
| 1973 | 83° | 51° | 67° | — | — |
| 1972 | 85° | 55° | 70° | — | — |
| 1971 | 80° | 48° | 64° | — | — |
26 years of data from REDSTONE ARSENAL