Weather on April 21
Huntsville, AL
55 Years of Data
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 27 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 30% 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.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 75° | 41° | 58° | — | — |
| 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" | — |
Huntsville, AL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Huntsville, AL Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Huntsville, AL Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Huntsville, AL
Huntsville, AL has no months that meet our "pleasant" threshold — every season has tradeoffs.