Weather on May 18 at Big Bend
Big Bend National Park
Based on 54 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 18th in Big Bend National Park (via Alpine, TX) typically brings warm spring weather, with average highs around 86°F and lows near 57°F — a 29°F daily swing. Over 54 years of records, the warmest May 18th was in 2003 (85°F average), while the coldest was 1986 (53°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 22% of May 18th dates historically, with the wettest May 18th recording 1.96" of rain. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for May 18th in Big Bend? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 93°F | 64°F | -- | -- |
| 2024 | 94°F | 61°F | -- | -- |
| 2023 | 85°F | 65°F | -- | -- |
| 2022 | 95°F | 61°F | -- | -- |
| 2021 | 84°F | 58°F | -- | -- |
| 2020 | 97°F | 64°F | -- | -- |
| 2019 | 83°F | 57°F | 0" | 0" |
| 2018 | -- | 61°F | 0.61" | 0" |
| 2017 | 86°F | 55°F | 0" | 0" |
| 2016 | 75°F | 49°F | 0.86" | 0" |
| 2015 | 87°F | 46°F | 0" | 0" |
| 2014 | 94°F | 59°F | 0" | -- |
| 2013 | 96°F | 57°F | 0" | -- |
| 2012 | 88°F | 55°F | 0" | 0" |
| 2011 | 89°F | 53°F | 0" | -- |
| 2010 | 87°F | 55°F | 1.47" | 0" |
| 2009 | 77°F | 53°F | 0.03" | 0" |
| 2008 | 86°F | 47°F | 0" | 0" |
| 2007 | 65°F | 54°F | 0.03" | 0" |
| 2006 | 84°F | 63°F | 0" | 0" |
| 2005 | 89°F | -- | 0" | 0" |
| 2004 | 94°F | 65°F | 0" | 0" |
| 2003 | 101°F | 69°F | 0" | 0" |
| 2002 | 78°F | 54°F | 0" | 0" |
| 2001 | 95°F | 62°F | 0" | 0" |
| 2000 | 91°F | 57°F | 0" | 0" |
| 1999 | 85°F | 56°F | 0" | 0" |
| 1998 | 94°F | 61°F | 0" | 0" |
| 1997 | 89°F | 60°F | 0" | 0" |
| 1996 | 98°F | 65°F | 0" | 0" |
| 1994 | 87°F | 64°F | 0" | 0" |
| 1993 | 82°F | 50°F | 0" | 0" |
| 1992 | 76°F | 52°F | 0" | 0" |
| 1991 | 92°F | 62°F | 0" | 0" |
| 1990 | 84°F | 60°F | 1.45" | 0" |
| 1989 | 88°F | 54°F | 0" | 0" |
| 1988 | 85°F | 57°F | 0.94" | 0" |
| 1987 | 84°F | 60°F | 0.13" | 0" |
| 1986 | 71°F | 36°F | 0" | 0" |
| 1985 | 80°F | 47°F | 0.2" | 0" |
| 1984 | 79°F | 57°F | 1.96" | 0" |
| 1983 | 86°F | 55°F | 0" | 0" |
| 1982 | 85°F | 54°F | 0" | 0" |
| 1981 | 86°F | 47°F | 0" | 0" |
| 1980 | 86°F | 52°F | 0" | 0" |
| 1979 | 86°F | 57°F | 0" | 0" |
| 1978 | 92°F | 56°F | 0" | 0" |
| 1977 | 87°F | 53°F | 0" | 0" |
| 1976 | 67°F | 50°F | 0" | 0" |
| 1975 | 87°F | 61°F | 0" | 0" |
| 1974 | 93°F | 60°F | 0.25" | 0" |
| 1973 | 88°F | 56°F | 0" | 0" |
| 1972 | 82°F | 55°F | 0.76" | 0" |
| 1971 | 87°F | 58°F | 0" | 0" |