WEATHER IN Key West
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | 41 (1886) | 65.5 | 70.6 | 75.8 | 90 (1877) |
| february | 44 (1917) | 67.1 | 72.3 | 77.4 | 87 (1874) |
| march | 47 (1986) | 69.3 | 74.4 | 79.6 | 89 (1874) |
| april | 48 (1987) | 73.1 | 77.9 | 82.6 | 91 (1881) |
| may | 63 (1877) | 76.4 | 81.1 | 85.9 | 93 (1881) |
| june | 65 (1932) | 79.4 | 84.1 | 88.7 | 96 (1881) |
| july | 68 (1888) | 80.6 | 85.4 | 90.2 | 97 (1880) |
| august | 68 (1894) | 80.5 | 85.5 | 90.6 | 97 (1956) |
| september | 69 (1898) | 79.2 | 84.1 | 89.0 | 95 (1956) |
| october | 59 (1892) | 76.8 | 81.3 | 85.8 | 93 (1962) |
| november | 49 (1959) | 72.2 | 76.6 | 81.0 | 91 (1876) |
| december | 44 (1876) | 68.3 | 73.0 | 77.7 | 88 (1876) |
| year | 41 (1886) | 73.1 | 77.8 | 82.5 | 97 (1880) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 1.83 | 0.00 (1990) | 17.64 (1983) | 6.42 (1983) |
| february | 1.54 | 0.00 (1834) | 7.19 (1872) | 4.33 (2012) |
| march | 1.53 | 0.00 (1838) | 10.23 (1853) | 5.26 (1987) |
| april | 2.07 | 0.00 (1870) | 13.14 (1941) | 6.19 (1985) |
| may | 3.12 | 0.00 (1927) | 13.01 (1904) | 7.20 (1960) |
| june | 4.23 | 0.10 (1834) | 17.06 (1853) | 5.14 (1992) |
| july | 3.63 | 0.33 (1942) | 13.64 (1947) | 7.14 (1916) |
| august | 5.37 | 0.70 (1836) | 15.83 (1926) | 9.66 (2005) |
| september | 7.24 | 1.71 (1961) | 18.45 (1963) | 8.38 (1998) |
| october | 5.67 | 0.40 (1838) | 23.56 (1933) | 13.54 (1933) |
| november | 2.05 | 0.00 (1995) | 27.67 (1980) | 22.75 (1980) |
| december | 2.16 | 0.01 (1834) | 11.18 (1986) | 6.66 (1986) |
| year | 39.83 | 19.99 (1974) | 71.26 (1870) | 22.75 (1980) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |