Key West March Weather

Averages and records for weather in Key West, Florida in the month of March.
Typical Key West March Weather
1991–2020
Average daily high 79.0 °F
Average daily low 68.8 °F
Average monthly precipitation 1.5 inches
Daily chance of precipitation 15.6%
Key West March Weather Records
1948–2024
Highest temperature 88 °F March 28, 1994
Lowest temperature 47 °F March 3, 1986
Highest daily low 79 °F March 31, 2020
Lowest daily high 57 °F March 3, 1980
Hottest average high temperature 82.9 °F 2003
Coldest average high temperature 72.6 °F 2010
Most daily precipitation 5.3 inches March 6, 1987
Most monthly precipitation 9.7 inches 1987
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
March 1 77.8 67.7 84 51
March 2 77.9 67.8 86 53
March 3 78.0 67.9 85 47
March 4 78.2 68.1 86 49
March 5 78.3 68.2 86 53
March 6 78.4 68.3 86 52
March 7 78.4 68.4 84 57
March 8 78.4 68.3 86 55
March 9 78.5 68.3 85 54
March 10 78.5 68.4 86 56
March 11 78.5 68.4 87 54
March 12 78.6 68.4 86 56
March 13 78.6 68.4 85 55
March 14 78.7 68.5 86 54
March 15 78.8 68.6 86 53
March 16 78.9 68.7 86 53
March 17 79.0 68.9 85 53
March 18 79.1 69.0 85 56
March 19 79.3 69.1 86 57
March 20 79.4 69.3 86 56
March 21 79.5 69.5 85 56
March 22 79.7 69.6 87 53
March 23 79.8 69.8 87 53
March 24 79.9 70.0 88 57
March 25 80.0 70.2 85 59
March 26 80.2 70.3 86 59
March 27 80.3 70.5 87 57
March 28 80.4 70.6 88 58
March 29 80.6 70.8 87 60
March 30 80.7 70.9 86 62
March 31 80.8 71.1 87 56
Weather Station Details
Years Station Coordinates
1948–2024 Key West International Airport location