Key West
The tables below display average monthly climate and weather indicators in Key West Florida.
Temperature by: Fahrenheit / Centigrade
| Key West Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 69.9 | 70.5 | 73.8 | 77.0 | 80.6 | 83.1 | 84.4 | 84.3 | 83.3 | 80.0 | 75.6 | 71.5 | 77.8 |
| Avg. Max Temperature | 74.8 | 75.4 | 78.6 | 81.7 | 85.1 | 87.6 | 89.1 | 89.2 | 88.0 | 84.4 | 80.0 | 76.1 | 82.5 |
| Avg. Min Temperature | 65.0 | 65.6 | 69.0 | 72.2 | 76.1 | 78.5 | 79.6 | 79.3 | 78.5 | 75.5 | 71.2 | 66.8 | 73.1 |
| Days with Max Temp of 90 F or Higher | 0.0 | 0.0 | 0.0 | < 0.5 | 1.0 | 8.0 | 16.0 | 17.0 | 8.0 | 1.0 | 0.0 | 0.0 | 49.0 |
| Days with Min Temp Below Freezing | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
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| Key West Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 44.0 | 30.0 | 7.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 19.0 | 100 |
| Cooling Degree Days | 196 | 184 | 279 | 360 | 484 | 543 | 601 | 598 | 549 | 465 | 318 | 221 | 4798 |
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| Key West Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 2.0 | 1.8 | 1.7 | 1.8 | 3.5 | 5.1 | 3.6 | 5.0 | 5.9 | 4.4 | 2.8 | 2.0 | 39.6 |
| Days with Precipitation 0.01 inch or More | 7.0 | 5.0 | 5.0 | 5.0 | 8.0 | 11.0 | 12.0 | 14.0 | 16.0 | 11.0 | 7.0 | 7.0 | 109 |
| Monthly Snowfall (inches) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
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| Other Key West Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 11.8 | 12.0 | 12.2 | 12.2 | 10.6 | 9.6 | 9.5 | 9.2 | 9.6 | 10.9 | 12.0 | 11.8 | 10.9 |
| Clear Days | 11.0 | 12.0 | 13.0 | 13.0 | 10.0 | 5.0 | 3.0 | 3.0 | 3.0 | 9.0 | 10.0 | 11.0 | 104 |
| Partly Cloudy Days | 11.0 | 10.0 | 11.0 | 11.0 | 13.0 | 14.0 | 16.0 | 17.0 | 15.0 | 13.0 | 11.0 | 11.0 | 155 |
| Cloudy Days | 9.0 | 7.0 | 6.0 | 6.0 | 8.0 | 11.0 | 11.0 | 11.0 | 12.0 | 9.0 | 8.0 | 9.0 | 107 |
| Percent of Possible Sunshine | 74.0 | 77.0 | 82.0 | 84.0 | 82.0 | 76.0 | 77.0 | 76.0 | 72.0 | 71.0 | 71.0 | 70.0 | 76.0 |
| Avg. Relative Humidity | 66.0 | 75.0 | 73.0 | 71.5 | 70.0 | 71.5 | 72.5 | 72.0 | 74.0 | 75.5 | 76.0 | 76.0 | 74.5 |
Weather information for other cities in Florida