Weather on May 21 at Big Bend
Big Bend National Park
Based on 55 years of data from Alpine, TX
Elevation Note: Big Bend sits at 3,800 ft. Expect temperatures 13°F cooler than the data shown below, which comes from Alpine, TX at a lower elevation.
Planning Your Visit
May 21st in Big Bend National Park (via Alpine, TX) typically brings warm spring weather, with average highs around 87°F and lows near 56°F — a 31°F daily swing. Over 55 years of records, the warmest May 21st was in 2014 (85°F average), while the coldest was 1979 (59°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 24% of May 21st dates historically, with the wettest May 21st recording 2.01" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 21st in Big Bend? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 94°F | 60°F | -- | -- |
| 2024 | 94°F | 64°F | -- | -- |
| 2023 | 80°F | 57°F | -- | -- |
| 2022 | 79°F | 59°F | -- | -- |
| 2021 | 94°F | 64°F | -- | -- |
| 2020 | 92°F | 59°F | -- | -- |
| 2019 | 81°F | 55°F | 0" | 0" |
| 2018 | 82°F | 58°F | 0" | 0" |
| 2017 | 77°F | 57°F | 0" | 0" |
| 2016 | 84°F | 53°F | 0" | 0" |
| 2015 | 87°F | 53°F | 0.15" | -- |
| 2014 | 103°F | 67°F | 0.13" | -- |
| 2013 | 93°F | 58°F | 0" | -- |
| 2012 | 83°F | 56°F | 0" | 0" |
| 2011 | 81°F | 49°F | 0" | -- |
| 2010 | 92°F | 58°F | 0" | 0" |
| 2009 | 84°F | 57°F | 0" | 0" |
| 2008 | 98°F | 52°F | 0" | 0" |
| 2007 | 84°F | 55°F | 0.2" | 0" |
| 2006 | 96°F | 68°F | 0" | 0" |
| 2005 | 93°F | 54°F | 0" | 0" |
| 2004 | 92°F | 63°F | 0" | 0" |
| 2003 | 72°F | 47°F | 0.1" | 0" |
| 2002 | 85°F | 54°F | 0.69" | 0" |
| 2001 | 84°F | 48°F | 0" | 0" |
| 2000 | 87°F | 62°F | 0.18" | 0" |
| 1999 | 94°F | 59°F | 0" | 0" |
| 1998 | 96°F | 71°F | 0" | 0" |
| 1997 | 76°F | 55°F | 0.89" | 0" |
| 1996 | 100°F | 64°F | 0" | 0" |
| 1995 | 96°F | 52°F | 0" | 0" |
| 1994 | 83°F | 57°F | 0.64" | 0" |
| 1993 | 84°F | 58°F | 1.57" | 0" |
| 1992 | 79°F | 52°F | 1.19" | 0" |
| 1991 | 81°F | 63°F | 0" | 0" |
| 1990 | 88°F | 46°F | -- | 0" |
| 1989 | 99°F | 61°F | 0" | 0" |
| 1988 | 84°F | 53°F | 0" | 0" |
| 1987 | 80°F | 50°F | 0" | 0" |
| 1986 | 93°F | 60°F | 0" | 0" |
| 1985 | 85°F | 45°F | 0" | 0" |
| 1984 | 97°F | 53°F | 0" | 0" |
| 1983 | 85°F | 52°F | 0" | 0" |
| 1982 | 84°F | 63°F | 0" | 0" |
| 1981 | 88°F | 57°F | 0" | 0" |
| 1980 | 84°F | 58°F | 0.08" | 0" |
| 1979 | 72°F | 47°F | 0" | 0" |
| 1978 | 81°F | 54°F | 2.01" | 0" |
| 1977 | 84°F | 45°F | 0" | 0" |
| 1976 | 87°F | 58°F | 0.13" | 0" |
| 1975 | 88°F | 51°F | 0" | 0" |
| 1974 | 88°F | 49°F | 0" | 0" |
| 1973 | 97°F | 56°F | 0" | 0" |
| 1972 | 92°F | 57°F | 0" | 0" |
| 1971 | 91°F | 59°F | 0" | 0" |