Key West climate

Key West Weather in January

NOAA 1991-2020 normals for Key W WFO, 0.6 km from Key West

Average highs run from 75°F on January 1 to 75°F on January 31, and lows from 64°F to 63°F. Normal precipitation for the month is 2.01 in over about 8 wet days.

January day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Key West, in °F, with the record for each date.405060708090151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
75°F
Average low
63°F
Precipitation
2.01 in
Record high
86°FJan 29, 1991
Record low
41°FJan 13, 1981
Chance of a freeze
0%
Daylight
10 h 39 min to 11 h 03 min
Cloud cover
51%
Humidity
79%
Dew point
65°F
Wind
13.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jan 175°F64°F84°F 201651°F 200124%
Jan 275°F64°F84°F 199651°F 200824%
Jan 375°F64°F84°F 196045°F 200825%
Jan 475°F64°F83°F 195950°F 200225%
Jan 575°F64°F83°F 195246°F 200125%
Jan 675°F64°F83°F 194949°F 201225%
Jan 775°F63°F85°F 196047°F 201025%
Jan 875°F63°F83°F 198847°F 201025%
Jan 975°F63°F82°F 199148°F 199625%
Jan 1075°F63°F84°F 199345°F 199625%
Jan 1175°F63°F83°F 199142°F 201025%
Jan 1275°F63°F84°F 199348°F 198125%
Jan 1375°F63°F83°F 196341°F 198125%
Jan 1475°F63°F82°F 196347°F 198125%
Jan 1574°F63°F83°F 199147°F 194825%
Jan 1674°F63°F85°F 199148°F 200624%
Jan 1774°F63°F82°F 202053°F 197724%
Jan 1874°F63°F85°F 196048°F 198124%
Jan 1974°F63°F82°F 196248°F 197724%
Jan 2074°F62°F83°F 198946°F 199724%
Jan 2175°F62°F82°F 199046°F 197124%
Jan 2275°F62°F85°F 195948°F 200923%
Jan 2375°F62°F84°F 195247°F 200923%
Jan 2475°F62°F83°F 200745°F 200323%
Jan 2575°F63°F84°F 199150°F 200123%
Jan 2675°F63°F82°F 198450°F 200523%
Jan 2775°F63°F84°F 198452°F 197722%
Jan 2875°F63°F84°F 199147°F 198622%
Jan 2975°F63°F86°F 199146°F 198622%
Jan 3075°F63°F85°F 199149°F 197822%
Jan 3175°F63°F85°F 199147°F 196621%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Key West, in percent.05101520251102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (EST).

January 1
sunrise 7:11 AM, sunset 5:50 PM
January 31
sunrise 7:09 AM, sunset 6:12 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00084571 (Key W WFO), public domain. Records: NOAA GHCN-Daily, station USW00012836, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.