Weather on March 21 at Big Bend
Big Bend National Park
Based on 56 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
March 21st in Big Bend National Park (via Alpine, TX) typically brings pleasant spring weather, with average highs around 73°F and lows near 41°F — a 32°F daily swing. Over 56 years of records, the warmest March 21st was in 2026 (76°F average), while the coldest was 2010 (33°F) — a 43°F range across recorded history. Rain or other precipitation has occurred on about 4% of March 21st dates historically. 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 March 21st in Big Bend? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 92°F | 61°F | -- | -- |
| 2025 | 78°F | 41°F | -- | -- |
| 2024 | 68°F | 44°F | -- | -- |
| 2023 | 74°F | 49°F | -- | -- |
| 2022 | 63°F | 49°F | -- | -- |
| 2021 | 80°F | 52°F | -- | -- |
| 2020 | 61°F | 38°F | -- | -- |
| 2019 | 56°F | 42°F | 0" | 0" |
| 2018 | 77°F | 32°F | 0" | 0" |
| 2017 | 90°F | 52°F | 0" | 0" |
| 2016 | 61°F | 28°F | 0" | 0" |
| 2015 | 53°F | 46°F | 0.48" | -- |
| 2014 | 81°F | 35°F | 0" | 0" |
| 2013 | 69°F | 43°F | 0" | 0" |
| 2012 | 54°F | 34°F | 0" | 0" |
| 2011 | 84°F | 49°F | 0" | 0" |
| 2010 | 42°F | 25°F | 0" | 0" |
| 2009 | 78°F | 49°F | 0" | 0" |
| 2008 | 82°F | 34°F | 0" | 0" |
| 2007 | 82°F | 48°F | 0" | 0" |
| 2006 | 51°F | 23°F | 0" | 0" |
| 2005 | 72°F | 42°F | 0" | 0" |
| 2004 | 60°F | 47°F | 0" | 0" |
| 2003 | 66°F | 39°F | 0" | 0" |
| 2002 | 72°F | 30°F | 0" | 0" |
| 2001 | 82°F | 46°F | 0" | 0" |
| 2000 | 80°F | 59°F | 0" | 0" |
| 1999 | 79°F | 39°F | 0" | 0" |
| 1998 | 70°F | 31°F | 0" | 0" |
| 1997 | 82°F | 50°F | 0" | 0" |
| 1996 | 76°F | 40°F | 0" | 0" |
| 1995 | 88°F | 46°F | 0" | 0" |
| 1994 | 71°F | 42°F | 0" | 0" |
| 1993 | 71°F | 50°F | 0" | 0" |
| 1992 | 73°F | 50°F | 0" | 0" |
| 1991 | 78°F | 50°F | 0" | 0" |
| 1990 | 83°F | 45°F | 0" | 0" |
| 1989 | 76°F | 26°F | -- | -- |
| 1988 | 80°F | 39°F | 0" | 0" |
| 1987 | 77°F | 36°F | 0" | 0" |
| 1986 | 71°F | 27°F | 0" | 0" |
| 1985 | 69°F | 27°F | 0" | 0" |
| 1984 | 81°F | 45°F | 0" | 0" |
| 1983 | 63°F | 21°F | 0" | 0" |
| 1982 | 74°F | 40°F | 0" | 0" |
| 1981 | 70°F | 43°F | 0" | 0" |
| 1980 | 72°F | 36°F | 0" | 0" |
| 1979 | 76°F | 49°F | 0" | 0" |
| 1978 | 78°F | 46°F | 0" | 0" |
| 1977 | 73°F | 47°F | 0" | 0" |
| 1976 | 71°F | 28°F | 0" | 0" |
| 1975 | 79°F | 45°F | 0" | 0" |
| 1974 | 66°F | 30°F | 0.03" | 0" |
| 1973 | 77°F | 42°F | 0" | 0" |
| 1972 | 77°F | 43°F | 0" | 0" |
| 1971 | 77°F | 43°F | 0" | 0" |