Weather on May 21 at Dry Tortugas
Dry Tortugas National Park
Based on 56 years of data from Key West, FL
Planning Your Visit
May 21st in Dry Tortugas National Park (via Key West, FL) typically brings warm spring weather, with average highs around 86°F and lows near 76°F. Over 56 years of records, the warmest May 21st was in 1995 (85°F average), while the coldest was 1991 (75°F) — a 10°F range across recorded history. Rain or other precipitation has occurred on about 39% of May 21st dates historically, with the wettest May 21st recording 8.03" 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 Dry Tortugas? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 89°F | 77°F | 0" | -- |
| 2025 | 84°F | 80°F | 0" | -- |
| 2024 | 85°F | 70°F | 1.02" | -- |
| 2023 | 92°F | 78°F | 0.1" | -- |
| 2022 | 85°F | 77°F | 0.03" | -- |
| 2021 | 80°F | 76°F | 0" | -- |
| 2020 | 89°F | 79°F | 0.05" | -- |
| 2019 | 89°F | 79°F | 0" | -- |
| 2018 | 84°F | 72°F | 3.2" | -- |
| 2017 | 86°F | 78°F | 0" | -- |
| 2016 | 89°F | 71°F | 0" | -- |
| 2015 | 87°F | 76°F | 0" | -- |
| 2014 | 89°F | 69°F | 0.15" | -- |
| 2013 | 87°F | 71°F | 1.02" | -- |
| 2012 | 85°F | 74°F | 0" | -- |
| 2011 | 90°F | 79°F | 0" | -- |
| 2010 | 83°F | 73°F | 0" | 0" |
| 2009 | 89°F | 75°F | 0" | 0" |
| 2008 | 88°F | 78°F | 0" | 0" |
| 2007 | 83°F | 76°F | 0" | 0" |
| 2006 | 86°F | 76°F | 0" | 0" |
| 2005 | 90°F | 72°F | 0" | 0" |
| 2004 | 84°F | 74°F | 0.25" | 0" |
| 2003 | 86°F | 77°F | 0.43" | 0" |
| 2002 | 81°F | 75°F | 1.75" | 0" |
| 2001 | 87°F | 79°F | 0" | 0" |
| 2000 | 86°F | 76°F | 0" | -- |
| 1999 | 88°F | 74°F | 0.58" | -- |
| 1998 | 86°F | 75°F | 0" | 0" |
| 1997 | 92°F | 79°F | 0.1" | 0" |
| 1996 | 82°F | 74°F | 2.79" | 0" |
| 1995 | 89°F | 80°F | 0.58" | 0" |
| 1994 | 82°F | 72°F | 0.66" | 0" |
| 1993 | 84°F | 76°F | 0" | 0" |
| 1992 | 84°F | 74°F | 0" | 0" |
| 1991 | 79°F | 72°F | 8.03" | 0" |
| 1990 | 87°F | 76°F | 0.15" | 0" |
| 1989 | 88°F | 77°F | 0" | 0" |
| 1988 | 87°F | 76°F | 0" | 0" |
| 1987 | 85°F | 75°F | 0" | 0" |
| 1986 | 85°F | 76°F | 0.13" | 0" |
| 1985 | 87°F | 79°F | 0" | 0" |
| 1984 | 85°F | 76°F | 0" | 0" |
| 1983 | 85°F | 78°F | 0" | 0" |
| 1982 | 83°F | 74°F | 0" | 0" |
| 1981 | 85°F | 75°F | 0" | 0" |
| 1980 | 87°F | 80°F | 0" | 0" |
| 1979 | 84°F | 74°F | 0" | 0" |
| 1978 | 87°F | 77°F | 1.19" | 0" |
| 1977 | 86°F | 74°F | 0" | 0" |
| 1976 | 85°F | 72°F | 2.16" | 0" |
| 1975 | 91°F | 75°F | 0.41" | 0" |
| 1974 | 85°F | 75°F | 0.08" | 0" |
| 1973 | 83°F | 77°F | 0" | 0" |
| 1972 | 83°F | 76°F | 0" | 0" |
| 1971 | 84°F | 75°F | 0" | 0" |