Weather on December 21 at Dry Tortugas
Dry Tortugas National Park
Based on 55 years of data from Key West, FL
Planning Your Visit
December 21st in Dry Tortugas National Park (via Key West, FL) typically brings pleasant winter weather, with average highs around 76°F and lows near 66°F. Over 55 years of records, the warmest December 21st was in 1999 (79°F average), while the coldest was 2004 (57°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 25% of December 21st dates historically, with the wettest December 21st recording 5.13" of rain. The last decade has been 7.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.3°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Dry Tortugas? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 81°F | 70°F | 0" | -- |
| 2024 | 75°F | 62°F | 0" | -- |
| 2023 | 73°F | 66°F | 0" | -- |
| 2022 | 82°F | 66°F | 5.13" | -- |
| 2021 | 84°F | 73°F | 0" | -- |
| 2020 | 77°F | 70°F | 0.97" | -- |
| 2019 | 76°F | 70°F | 0" | -- |
| 2018 | 76°F | 69°F | 0.03" | -- |
| 2017 | 82°F | 68°F | 0" | -- |
| 2016 | 78°F | 72°F | 0.66" | -- |
| 2015 | 76°F | 71°F | 0.51" | -- |
| 2014 | 78°F | 67°F | 0" | -- |
| 2013 | 78°F | 76°F | 0" | -- |
| 2012 | 75°F | 71°F | 0" | -- |
| 2011 | 73°F | 71°F | 0" | -- |
| 2010 | 65°F | 56°F | 0" | 0" |
| 2009 | 70°F | 56°F | 0" | 0" |
| 2008 | 77°F | 66°F | 0" | 0" |
| 2007 | 78°F | 63°F | 0.13" | 0" |
| 2006 | 77°F | 73°F | 0" | 0" |
| 2005 | 69°F | 60°F | 0" | 0" |
| 2004 | 61°F | 53°F | 0" | 0" |
| 2003 | 65°F | 52°F | 0" | -- |
| 2002 | 66°F | 60°F | 0" | 0" |
| 2001 | 73°F | 65°F | 0" | 0" |
| 2000 | 65°F | 56°F | 0" | -- |
| 1999 | 83°F | 75°F | 0" | -- |
| 1998 | 81°F | 72°F | 0" | 0" |
| 1997 | 81°F | 70°F | 0" | 0" |
| 1996 | 65°F | 55°F | 0.13" | 0" |
| 1995 | 69°F | 62°F | 0" | 0" |
| 1994 | 78°F | 66°F | 0.94" | 0" |
| 1993 | 82°F | 67°F | 0" | 0" |
| 1992 | 81°F | 68°F | 0" | 0" |
| 1991 | 77°F | 67°F | 0" | 0" |
| 1990 | 80°F | 70°F | 0" | 0" |
| 1989 | 82°F | 69°F | 0.38" | 0" |
| 1988 | 81°F | 68°F | 0" | 0" |
| 1987 | 80°F | 73°F | 0" | 0" |
| 1986 | 76°F | 69°F | 0" | 0" |
| 1985 | 69°F | 61°F | 0" | 0" |
| 1984 | 80°F | 68°F | 0" | 0" |
| 1983 | 82°F | 73°F | 0" | 0" |
| 1982 | 68°F | 59°F | 0" | 0" |
| 1981 | 72°F | 53°F | 0" | 0" |
| 1980 | 71°F | 63°F | 0" | 0" |
| 1979 | 74°F | 66°F | 0" | 0" |
| 1978 | 80°F | 73°F | 0.05" | 0" |
| 1977 | 79°F | 61°F | 0" | 0" |
| 1976 | 72°F | 57°F | 0.3" | 0" |
| 1975 | 72°F | 62°F | 0.05" | 0" |
| 1974 | 82°F | 69°F | 0.13" | 0" |
| 1973 | 70°F | 60°F | 0" | 0" |
| 1972 | 82°F | 74°F | 1.47" | 0" |
| 1971 | 82°F | 72°F | 0" | 0" |