Weather on May 21
Arlington, TX
55 Years of Data
Avg High
84°F
Avg Low
64°F
Warmest
1996
84°F avg
Coldest
2015
62°F avg
About This Date
May 21st in Arlington, TX typically brings warm spring weather, with average highs around 84°F and lows near 64°F. Over 35 years of records, the warmest May 21st was in 1996 (84°F average), while the coldest was 2015 (62°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 26% of May 21st dates historically, with the wettest May 21st recording 3" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Arlington, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 55° | 72° | — | — |
| 2024 | 89° | 76° | 82° | — | — |
| 2023 | 77° | 58° | 67° | — | — |
| 2022 | 92° | 65° | 78° | — | — |
| 2021 | 87° | 73° | 80° | — | — |
| 2020 | 89° | 72° | 80° | — | — |
| 2019 | 84° | 66° | 75° | 0.03" | — |
| 2018 | 86° | 61° | 73° | — | — |
| 2017 | 79° | 62° | 70° | 0.08" | — |
| 2016 | 86° | 61° | 73° | — | — |
| 2015coldest | 66° | 58° | 62° | 3" | — |
| 2014 | 87° | 69° | 78° | — | — |
| 2013 | 82° | 56° | 69° | 1.7" | — |
| 2012 | 90° | 61° | 75° | — | — |
| 2011 | 89° | 63° | 76° | 0.03" | — |
| 2010 | 88° | 64° | 76° | — | — |
| 2009 | 87° | 54° | 70° | — | — |
| 2008 | 90° | 69° | 79° | — | — |
| 2007 | 78° | 65° | 71° | 0.91" | — |
| 2006 | 91° | 67° | 79° | — | — |
| 2005 | 98° | 69° | 84° | — | — |
| 2004 | 87° | 69° | 78° | — | — |
| 2003 | 66° | 60° | 63° | 0.86" | — |
| 2002 | 80° | 56° | 68° | — | — |
| 2001 | 80° | 54° | 67° | — | — |
| 2000 | 80° | 62° | 71° | — | — |
| 1999 | 88° | 68° | 78° | — | — |
| 1998 | 95° | 69° | 82° | — | — |
| 1997 | 68° | 61° | 64° | 2.03" | — |
| 1996warmest | 95° | 73° | 84° | — | — |
| 1995 | 82° | 54° | 68° | — | — |
| 1994 | 80° | 58° | 69° | — | — |
| 1993 | 80° | 60° | 70° | — | — |
| 1992 | 82° | 67° | 74° | — | — |
| 1991 | 86° | 69° | 78° | 0.18" | — |
35 years of data from ARLINGTON MUNI AP